Nissan Scissor!? "SkyJack" - Part 1

We're on the road again...this time to Ohio.
Got a call for a Nissan-powered 2006 SkyJack Scissor lift that stalls out after 10 minutes of running.
Upon arriving on site, it quickly becomes clear that the stalling is not the only problem with this lift!!
Let's start from scratch and follow the reliable scientific approach...get the popcorn ready :)
CRAFTSMAN AMP CLAMP:
www.amazon.com/dp/B00LXII71W/...
Enjoy!
Ivan

[@bcad4066]

You forgot to say "New battery from NAPA, not a sponsor." Oops, sorry wrong channel.

[@repairitdontreplaceit]

that ecu is A PRIME candidate for dry solder joints

[@oldhvacguy8427]

Indoors, out of the wind and weather? SWEET!!

[@oldhvacguy8427]

@mchlross3 My bad. I forgot that one. LOL

[@mechtechtools838]

When I used to work on aerial equipment we called those scissor lifts SKYJUNK

[@hightttech]

Thanks for the memories. That lift has 1980's GM code system. The words "Flash code 12" triggered flashbacks to when a bent paperclip was my goto scanner 😆.

[@Garth2011]

It needs some serious maintenance due to lack of years of maintenance. Lots of obvious items are neglected which indicates owner doesn't keep up on repairs etc. Wiring and ignition issues.

[@kellyspeppers]

Back when I worked on construction equipment, all of it was old and worn out with things disconnected and jumpers around circuits. This was back before easy to access info found on the net. Giant PITA. Shuts off after 10 min, first I would check for a strong spark, a bad coil could short out and do this.

[@throttlebottle5906]

the round oil filled can coils didn't tend to do that, now the epoxy exposed metal core ones would break down from bad wires/cap/rotor. tossup between lack of spark and fuel injection spray... looks like ancient TBI injection setup, those injector coils loved to go low resistance and overheat/cook the ecm driver, I made the mistake of putting a used ECM in one and not checking the injector, needless to say a week later it was in the same boat (whoopsie)

[@fieldsofomagh]

At this stage, would have 3 sticks of dynamite on hand, and politely told Bob to take cover. Would not apologise for my actions and would put it down to normal practice in extreme circumstances. A man's got to do, what a man's got to do. No codes and then what ? Try the fuel tank for gas ? Crusties on board, perhaps? Faulty coil ? The list is endless. Have a coffee break and clear the head. I'm under pressure and not even near the machine.

[@chadsimmons6347]

Those 4X4 lifts get treated like crap, stuck in deep mud, sitting in water all day, thats why you (rent) them not buy them

[@JVerschueren]

Another day, another scissor lift with vague symptoms... this should be fun.

[@zx8401ztv]

That is one mad system, i would strip the plugs going into the computer and see if there was any nastys. Also do the plugs stay in fully, a couple of cable ties round the computer to keep them from jiggling about. Oh and i would run away fast, i mean really fast :-D

[@jwat2s]

Went through the same diagnosing for the same problem on the same machine. All the same thought process and testing… bad ecu was the culprit. Thanks for the memories lol.

[@cinderbleh]

Thanks for sharing, I always learn something from your videos.

[@Peter_Riis_DK]

I'd look for the shutdown timer.

[@Anonymous-it5jw]

I've seen a plastic bag in a fuel tank cause these periodic issues; when the engine runs, the pump sucks the bag around the pickup; when it cuts off, the bag falls off the intake, and it will crank again, Conventional fuel filters can also do this. I had to skim through this video, so I assume this is not one of those sky lifts with two new 12 volt batteries that some bright light connected the wrong way, so that the one battery you charged up is essentially neutralized by the recharging of the system after 10 minutes and the low voltage cuts off the system.

[@AP9311]

Wow, Ivan. Nissan scissor lift??? Dang. Man i gotta wait for the conclusion!!! Lol. Great diagnosis! Many thumbs up!

[@chrisgreenwood271]

Hell if you ain't becoming the master of the MEWP.

[@carlosmoreira779]

Ivan performs magic using science and logic!

[@engeneer_ru5827]

Как здорово, что можно отыскать документацию на все, что ты ремонтируешь! Работа, превращается в удовольствие...

[@mdorf61]

Zenith, the quality goes in before the name goes on.

[@stealthg35infiniti94]

Corrosion in outdoor terminals will eventually give you problems...Clean ALL connections with Deoxit and then put dielectric grease to encapsulate the pins/connections...I have fixed countless problems this way...

[@mike_svt93]

Hopefully the ignition coil wasn't weakened being disconnected while cranking. Also with the weather seal not mating correctly could cause moisture and corrosion to find its way into the ECM. Have to wonder if the tie wrap was really there to compensate for another issue within the module harness connection. And tighten that alt belt!

[@georgeswindolljr1980]

Go get em young man!!!!!! Wooiooohiooooo!!!!!!!

[@MarshaJ8800TU]

For the fuel pump, I'd check those taped up repairs on the control box cable, where the scissors had cut it.

[@charleshoops2307]

you can use silicone spray on those weatherpack seals. works wonders.

[@arthurfricchione8119]

Ivan I will wait for bonus footage LOL 😀

[@commercialelectrician133]

I have been seeing your videos but today I have subscribe great videos keep them coming

[@PineHollowAutoDiagnostics]

Thank you! Enjoy the show!

[@irenesilvers7096]

Very nice video, thank you. Find the missing wire for the temp. sensor.

[@simonsackett]

I think that's just the sender for the water temp gauge.

[@gregwhite5058]

Reminds me of reading DTCs on my 86 Crown Vic with EEC IV. Have to use an analog voltmeter and count needle swings. My wife's 89 Probe with MECS II is more advanced -- just have to count flashes of the MIL. People with OBD II don't know how good they have it.

[@billsimpson604]

One thing Ivan's job will never be, routine and boring.

[@billyr9840]

Nice !

[@throttlebottle5906]

liquid cooled/heated throttle body assembly, on propane in winter would likely ice up bad. looks to me the ECM coolant temp sensor is actually the one on top of TBI @ 15:13 while I suppose it could be air temp, I don't think anything that age had them. BAH I had the sensors flip flopped, I seen the lower one, but though oil pressure earlier in video, after seeing closer view it was clearly temp sensor body

[@somerandomguy3868]

I remember counting the flashes, that's some old-school stuff, try disconnecting the battery and doing an ECM memory clear by grounding 203, if that doesn't work go to lunch and don't go back 😀

[@rafflesnh]

"Go to lunch and don't go back"? Ivan is Russian, not a Yank.

[@PineHollowAutoDiagnostics]

@@rafflesnh xD

[@mikepratali5582]

@@rafflesnh LOL... oh snap!

[@williegillie5712]

Don’t ya just love them jobs that seem to want you to stick around a while Ivan? That blinking check engine light reminds me a lot of them gm cars back in the nineties. Even has a throttle body injector.

[@hpelisr]

Take a close look at the pins and socket? might be something jammed in there, keeping it from full contact.

[@opl500]

My guess is when you installed the new battery you jiggled some wire to the fuel pump

[@willemstreutgers1154]

I can't understand almost every car you are solving problems on has corroded terminals. It almost every time tells me "lack of maintainance". My cars never have corroded terminals, always clean and protected with Petroleum Jelly. For capacity checks i use a simple capacity tester which give me the CCA and voltage and health of the battery.

[@jordydereus]

Yes me too.

[@snoopdogie187]

Seriously, how do you corrode the terminals, besides driving it through a large large puddle all of the time. Never mind, I drive my jeep through puddles that spray the water higher than the jeep. Are these people spraying salt water all over their wires just to see Ivan come work on their things?

[@willemstreutgers1154]

@@snoopdogie187 Corrosion occurs due to electrolysis, the air around us has damp in it. and the terminal and clamp ere made out of different alloys metal.

[@twodogsify]

Throw a set of spark plugs at it. Is the exhaust leak messing with the O2 sensor?

[@jamesdk5417]

Wow, I am only new to your Chanel, I like the content, but did you put in the 10 adds or was that google because you left it on automatic for mid roll adds. If they are all like this I will reconsider my subscription.

[@PineHollowAutoDiagnostics]

Welcome to the channel James! I always manually cut back the ads that Google puts in there...so every 8 to 10 minutes is the norm. Enjoy the show :)

[@adamtrombino106]

Welcome to good old fashioned OBD 1... counting flashes...

[@jerrymoore7669]

Sounds like a 2 stroke motor cycle.

[@jamesatkinson6480]

I can offer an explanation of the 10 minute limit of continuous operation. The appliance is a sky lift, and with gasoline operation (in Australia, something outlawed for use in enclosed spaces, due to CO emissions). It most likely has a time limit set on the ECM, for adequate dispersion of toxic gases (mainly carbon monoxide) with only a short time of operation (much less than 10 minutes) necessary to ascend/descend...

[@diymisfit_Mechanic_UDX404]

Another cliffhanger, soooo cruel

[@InsideOfMyOwnMind]

$1.99 for part two. Never gonna live that down LOL

[@diymisfit_Mechanic_UDX404]

@@InsideOfMyOwnMind LMAO, people were pissed about that one, That's what started the riots LOL

[@rock.doctor]

those are standard GM OBD1 codes. 14 is coolant temp sensor and as you say 33 is MAF/MAP.

[@simonilett998]

Hey Ivan, My guess...possibly a bad computer Gnd....gets worse as engine warms up, and rough crank ups might be all related? Other possibles: Faulty MAP sensor, or it's connections..(could cause rich, or lean, or all over the shop) Ignition system related...(could cause rough run, and da black smoking) saw one good spark, but you had to get a lot closer to the coil with your test light to get a spark after that? Faulty Throttle Actuator....or loose throttle plate...Perhaps the last screw finally came detached from the throttle shaft and the butterfly has shut off the intake completely?...No more rattles now, but might explain the erratic throttle behaviour prior to a complete shut down🤣 Hard one when almost all symptoms match the possibilities....can't wait for Part2..lol🤣👍🇦🇺

[@fredshead7114]

I would re check for spark and fuel supply while its not running, maybe a squirt inn air intake, i have know an ignition coil to get hot and pack up...F

[@johnarrington6292]

Looks like you're getting a rep as a scissor lift whisperer. With this flakiness I'm going with the dry solder joint(s) in the ECU comment.

[@robertmccully2792]

Had same problem with a jeep , firewall connection was bad.

[@loz11968]

Yeah other people have mentioned the ecu dry joints, why would a manufacturer fit an ecu above and on top of an engine just doesn’t seem like a smart place to put it to me. Don’t know if it has a crank position sensor I have known them to fail when they get hot and not set a code...

[@citichap]

If this engine has a ceramic resistor connected to the coil, then that might be the issue. May have to change out both the coil and the resistor (if it has one).

[@Chu3505]

The fueling throttle body dose have problems in this thing.Should of be cleaning it out and checking fuel source coming in and make sure all the sensors works?Should getting this thing working again.

[@dans_Learning_Curve]

Like #617 Thanks for the video!

[@donnierobertson3088]

Good

[@zochpeter]

Ivan, what engine is that? looks like A-series. Do you know?

[@VWWRENCHIE]

That thing runs like an engine in a Bugs Bunny cartoon...😃

[@zochpeter]

23:00 Ivan, that is the original coolant sensor on a Nissan A-series engine. please share the displacement, I am really curious.

[@mikeaho4143]

Is the low oil sensor possibly causing the shutoff ?

[@ryanchenier-poulin8570]

Got a question Runs like its missing and oddly eill rev up. But not sure.

[@williamhague2768]

Man. Those things are a nightmare of wires and safety’s. I’d check for high temp or low oil pressure. See if it has a time out timer?? May be a safety issue of idling for a long period? Trial lawyers love those things...

[@williamhague2768]

Could be an environmental thing that if left running with no attention or command that it shuts down and must be restarted if you don’t move it. If you extend the lift up will it stall or time out then??

[@robertcesare2031]

Did you check the oil an cooler levels?

[@jdtractorman7445]

I'm saying maybe a ground issue, maybe a circuit board issue. Something that fails with heat, resistance goes up when heat goes up.

[@rtta51]

15 lbs at fuel pump sounds low.

[@snoopdogie187]

Yeah, it looks like a regular nissan car engine (I'm sure it is, why would that make a special engine for this) with more electronic controls on it. I would assume it should be at least 30+ psi, more than double where it is.

[@crhirschi]

@Josh Smith at 23:26 he says it's a fuel injected engine

[@PineHollowAutoDiagnostics]

It's throttle body with one injector, kind of like GM TBI, so 15psi is plenty :)

[@baxrok2.]

If you plan on any trips through Ohio in the future, lmk. I've got a funky misfire that might be fun to diagnose for a video. Thanks Ivan!

[@PineHollowAutoDiagnostics]

Where in Ohio John? I visit Columbus on occasion :)

[@baxrok2.]

@@PineHollowAutoDiagnostics Cincinnati. I'll most likely get my act together and put the scope on it before then but just in case lmk.

[@ggstephens50]

quick shut down sounds like ignition

[@TheDisgruntledMechanic]

Need an Identifix for construction equipment!

[@PineHollowAutoDiagnostics]

Interesting thought Mike!

[@arrow251]

Did you ever switch back to gasoline or are you still in propane mode?

[@pb3033]

A thermoswitch on the coolant sensor ?

[@cammo069]

There’s a real reason they’re nicknamed “SkyJunk” in the Australian EWP rental market

[@zmasta101]

Go back and checkout throttle body after that 10 min stall?

[@nv1493]

Ivan never met a scissor lift he didn't love. ;)

[@kevinbarry71]

Same battery that was in it when we bought it who knows how many years ago. What is it about construction companies?

[@throttlebottle5906]

sounds like ignition or fuel misfire, bad grounds or ecm issue maybe

[@twobrotherscycleanda]

I haven't seen anything made by zenith in 30 years!

[@throttlebottle5906]

I'd guess that front sensor is a coolant sensor, but single wire for dash gauge, not ECM, it would be elsewhere and either two or three wire(probably two wire) since that engine has separate gauge sensor. trying to recall back to the age range of that dinosaur engine design

[@nigelclark7360]

May be a highly sulphates, battery a lot of surface voltage only quarter.of batt capacity.

[@carloshonrado1169]

If it goes out in 10 minutes I believe it has something to do with an electronic component because of the heating, I would see the coil and injector next.

[@turtlezed]

I was thinking temp sensor faulty. 10 mins enough time to heat engine up and that fan coming on and interrupting fuel pump operation may be a programmed safety to stop you overheating and ruining the engine.

[@turtlezed]

Well maybe not programmed, just a changeover relay could do the job when it hits overheat temperatures?

[@rgmoore]

Dead cell, ECU won't come on with low volt so engine won't run. Tale Tell sign is the low volt and the fan comes on. Its a default on Nissans I think.

[@mikefoehr235]

Ivan, you should call Zak Bagans.

[@robertmccully2792]

amp clamp unavailable at link?

[@yurbeeinwatched]

So anyhoo. My westbound problem is fixed. It seems as if I was missing a tire valve stem cap on the left rear. This thing drives like a new car now. My radio still only plays crappy music though. It's a Delco AM and I never hear any Billie Eyelash or Machismo Kelly. Pretty much just this really long song that goes SCRSSH. I have heard that if I smoke more meth it gets better. I went to the dealership and they called the cops. Does Dorman make a decent meth deal? I have a broken light bulb to smoke it out of. I lost the factory meth pipe in a BLM riot when I was rolling a flaming dumpster at the courthouse. It's a whole deal man. My mom even freakin' threw away my Animals on the Farm coloring book. I didn't even get to do the cow! What's up with that?

[@yurbeeinwatched]

Yep. Every since Yahoo disabled comments. I have to have an outlet. That said. Have you tried the ATS scope? I like some of the features, but the screen seems cluttered. I have their scanner an I do like it. It's great for MAF and AF sensor diag. I'm looking to move into an 8 channel Pico or a super solid new 4 channel unit. Where I live, electric cars are becoming the name of the game. Fine with me. No EVAP codes or hacked up exhaust. Not to mention they don't have a "buddy" who is full of "advice". Just ask the Cadillac guy who spent 800 bucks on coils and plugs for the clogged CAT I told him he needed. I saw that coming though.

[@justincase3880]

When the fuel pump primes I heard a relay click .. when not, I didn’t ...

[@president_kanye9165]

Do you still recommend the TrekPow?

[@PineHollowAutoDiagnostics]

Yup it's my main work jump pack at the moment; no complaints :)

[@ldg332004]

That fuel filter was on the suction side of the electric fuel pump right? thats a BAD idea. should always be on the other side.

[@joeplourde9261]

When are you going to titen the alt belt

[@rickilee961]

Never fix the visual problems first....lol

[@PineHollowAutoDiagnostics]

I did after the squealing got annoying haha

[@joeplourde9261]

Pine Hollow Auto Diagnostics thank you you a dr in my book joe

[@publicmail2]

This is OBD1 codes

[@awd42]

It really is! Code 12 flashing on the CEL, all that...I just checked my old GM service manual, and sure enough Code 33 is indeed MAP voltage high (low vacuum). BTW, Code 14 is coolant temp sensor high temperature (low voltage); can be caused by short to ground.

[@HUBBABUBBADOOPYDOOP]

This is nearly the same as my '88 Nissan Pulsar NX (videos on my channel) It's ECM was Pre-OBD1. Engine warm, it had a dashpot, you turned it to "DIAG" and it had 2 LED, green =1 and red= 10. These codes are in a Haynes '88 Nissan Sentra manual, and also here-------> www.apexautoaz.com/nissan-obd-i-codes-.html

[@snoopdogie187]

I drove a 92 Pathfinder with something similar. I've never had to use it because the only problems it had were so simple to solve, even over 300,000 miles on it. One issue was the speedometer cable broke, so we never really knew the miles, but it was up there.

[@rickilee961]

You broked it...lol

[@chekelley6861]

Do you not use your new Fluke amp meter anymore?

[@PineHollowAutoDiagnostics]

Nope I'm disappointed with the Fluke. Small display, only one digit on the volts, defaults to AC volts and amps, banana jacks on the bottom...Craftsman is much more user-friendly!

[@chekelley6861]

Pine Hollow Auto Diagnostics thank you. I was considering buying one. Lol

[@mikepratali5582]

with no trouble codes stored after engine died.. I'm going with the coil. (et al)

[@publicmail2]

Spray all pins and check also check relays. Why only 15PSI with an injector that can't be right. OBD1 is very minimal doesn't show but 30-40 codes if that on this machine maybe 20. You may have low voltage again, oil pressure, bad coil after heats up and short internal, go back to basics when stopped.

[@richardc6038]

Bad swich or bad ground

[@rodd8170]

I would give it a service & see how it runs then.

[@pedroequis9396]

Fuel pump

[@tam1381]

Call Keith.

[@PineHollowAutoDiagnostics]

I did...to tell him about the final victory :)))

[@garygary8645]

Out of fuel ?

[@JOHNSUE28]

That Alternator Belt should of been addressed early on.

[@PineHollowAutoDiagnostics]

What comes first... The chicken or the egg? 😜

[@mikechiodetti4482]

Is that ECM getting hot? That fuel pressure seemed a little low, but for a Throttle Body Injection system that could be normal. I would monitor the ign coil on both sides with the scope and does the distributor have a pick up coil or a hall effect sensor? This looks like a GM OBD1 system. I would also monitor the injector pulse with the scope. It's a 10 min problem, could be a thermal problem in the ECM. Or a bad solder joint. (Heat and/or vibration) If your losing power to the ign coil or the fuel injector, could be a power problem to one or both of them. A power relay, bad fuse, wiring or a loose terminal somewhere? Tighten that alternator belt also.

[@NoWr2Run]

This is what I was thinking, " CAPTAIN SHE'S JUST GETTING TOO HOT & SHUTTING OFF SIR ".

[@PineHollowAutoDiagnostics]

Excellent thoughts!

[@joeplourde9261]

So no low volt

[@manuel7958]

Check oil pressure sensor

[@proven6270]

Just sayin... You'll always be "That Guy" somebody might call, instead of a shop or a dealer for stuff ....... lulz....:o

[@craigdalzell2908]

check the coil