⭐ 2002 Jeep Grand Cherokee Laredo - P0302 - Runs Rough - Spark Plugs

[@TaaarrrrHeeeels]

Thanks for the help, you saved me time and money!

[@jamieewing692]

Thank you Timmy! I trust only you to repair my Jeep. Rusty and I went for a ride immediately...SMOOTH. You have given me a new confidence in that old 2002! As for Jamie on camera... The jury is still out on her! LOL! Cheers! Jamie

[@OnlineAutoRepairVideos]

LOL, you were great on camera. Thank you for everything to both of you.

[@jamesmichael3998]

Thanks for sharing this. CHEERS from Jacksonville Florida

[@OnlineAutoRepairVideos]

Our pleasure, and THANKS from Rocky Mount, NC!

[@acm2147]

Hi I have a 99 grand cherokee laredo was running rough and sometimes even went off while driving used fuel injector cleaner ounce it had like an out burst of fuel and accelerated (Sorry if I dont use the right terms I am no mechanic) it was on parking that happened while i was out of the car opening the carport gates I changed spark plugs but now wont turn on and makes a scary noise I am going to change also fuel filter will changing the coil will solve the problem?

[@OnlineAutoRepairVideos]

Is the check engine light on, and if so what are the codes?

[@acm2147]

@@OnlineAutoRepairVideos well so far changed the sparkplugs tried to turn it on but made weird noises and turned off then installed new coil and and started right away took a ride to the mall when returning started acting weird and stoped no check engine light then turned on again feels like is related to gas pump or filter so gona install new gas filter that I bought months ago but havent been able to install it also havent been able to take it to the mechanic to check codes hope that works and thanks for your replay

[@OnlineAutoRepairVideos]

@@acm2147 Keep us posted!

[@thrillseekermusic2317]

I have a 2003 Grand Chero, Laredo also with the 4.0 but 2 wheel drive with over 221,000 miles, I've had it for over 3 months and it ran good up unroll I changed the spark plugs. The old plugs were almost as bad as those on your video but the jeep ran fine with them, no issues. But once I put the new ones on after about 2 days it started misfiring and to this day about a month later it is still misfiring. Was I supposed to change the coil pack too? Along with the spark plugs? Because it was running fine up until the spark plug change.

[@OnlineAutoRepairVideos]

If it ran fine for a month AFTER you replaced the plugs, then it might just be you had the coil go bad. Keep us updated!

[@thrillseekermusic2317]

@@OnlineAutoRepairVideos the jeep was running good up UNTIL I changed the plugs, I plugged a code reader into it and I would get codes P300 - P0301,P0306 & P1281 so I then would switch plug 1 over to like plug 2 just to see if it might be that plugs individual solenoid pack and the P0301 would disappear and vise versa with P0306 but a day or two later those same codes would return again. I just recently replace the PCM because the jeep finally stopped running completely. It kept dieing out on me when I would come to a stop. It would not start at all anymore UNTIL I replaced the PCM then it started up right away. Also I'm having an issue with my gas gage, it was working fine until the issues started occurring. I'll put in $20 in gas and my overhead info display would tell me that I would have around 75-85 miles until my tank needs to be refilled, but now with the same amount of gas it will give me 75-85 miles till refill then I'll travel many 2 miles and it will display that I now only have 32 miles left and keep going down two to three times as much the further I drive, its come to the point that I can no longer trust my Jeep. I love my Jeep & I don't want to have to get rid of it. I haven't had a vehicle in over 12 years and I finally get one the I like for a dam good price $1,800 with no dents a nice original paint job and very very clean interior I no longer have the means to pay for anymore repairs or buy another car. I want to so badly keep my Cherokee. I just played $1,600 for a 3,000 watt stereo system - had a wheel alignment I baby this Jeep a lot. Please give me some kind of clue on what to do. Thank you so very much for your quick response to my questions. Sincerely Angel Rosalez.

[@OnlineAutoRepairVideos]

@@thrillseekermusic2317 When you replaced the plugs, did they have a gas smell on them? Start off by addressing the coolant sensor code FIRST, because if that sensor goes bad, the computer will throw so much gas into the cylinders, it will cause a bad misfire. Make sure it it plugged up, the connector is clean, and if so REPLACE IT,

[@joeyriley381]

@@OnlineAutoRepairVideos why would my keep throw a p0118 code after a ect replacement? Should I unplug the battery? Or possible I bought a bad ect sensor out of the box?

[@joeyriley381]

@@OnlineAutoRepairVideos I have p0118, p0320,p0304

[@WilsonBradleyTheOfficial]

Thanks for the video.. I've got 2000 Jeep Grand Cherokee 4.7 V8.. Trying to trouble shoot a P0307 - Cylinder 7 Misfire... The History- Radiator seam cracked, leaked/ sprayed anti Freeze.. On way home (10min away) car gets extremely hot 220+in Texas heat.. Pulled over let it cool. Car starts to misfire, end up with P0207 Injector Circuit and P0307 . Replaced 4 spark plugs on that side and swapped fuel injector 1 and 7 to see if problem moves. Added anitfreez and radiator sealant. Unplugged battery for a while to reset code. Drove it today about 4-5miles, Jeep overheats again and now only code P0307 and obvious misfire. Tomorrow swap spark coil with 1 and 7.

[@OnlineAutoRepairVideos]

Let us know what happens after the coil swap, and THANKS!

[@WilsonBradleyTheOfficial]

@@OnlineAutoRepairVideos - So I disconnected battery every time I made a change to clear out the OBD history. I swapped the coil and problem went to the 1 location. Went to Autozone and bought a new one $22 . Replaced it, so far no engine light ;-)

[@OnlineAutoRepairVideos]

@@WilsonBradleyTheOfficial COOL!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@WilsonBradleyTheOfficial]

@@OnlineAutoRepairVideos Well, still getting misfire or one cyclinder is not happening for sure.. No codes this time..? Using Torque Pro- but can't find any custom Jeep Pids to show Injectors. Looking for full Jeep Grand Cherokee 2001 4.7 PIDs

[@OnlineAutoRepairVideos]

@@WilsonBradleyTheOfficial So you have a misfire, but no codes yet?

[@barbaragalligan760]

I have a misfire on 6 3 cylinder and very hard to start in the takes a few seconds to start up I have a drive sync by T-Mobile no engine light on but when I come to a light it shakes so much anyone would ideas is the coil pack and not starting up the same thing disconnected the battery to clear the code

[@OnlineAutoRepairVideos]

That sync will NOT tell you of pending codes. Those must be checked, and you must be able to read data in order to diagnose the issue correctly

[@charlesn.richie304]

I have a 2001 jeep Grand Cherokee laredo 4.7 V8 I I have a PO 308 code also its hard to find a good honest mechanic Denver Colorado

[@franilan2591]

Were her check engine lights on or can you check for codes with out the CEL lights on? Guy at autozone said checking the codes without CEL would be pointless 🤷🏽‍♀️

[@OnlineAutoRepairVideos]

No, it's not. You can always check under "Pending Codes", which is something where the computer picks up a possible problem, but it may not be enough to turn on the check engine light, just yet.

[@franilan2591]

ahhh I knew it! i was just there. I knew he just didn't want to go out in the scorching sun!! I'm trying to diagnose her (my Jeep) as we speak. Feeling hopeless...

[@OnlineAutoRepairVideos]

You should invest in an inexpensive code reader. There are many out there for as little as $19, and what's great about it is once you get the code, you can always search KZbin on how to repair it. hope this helps!

[@franilan2591]

I actually think I'll do that. Thanks so much! I'll let you know what I find out. :)

[@regrob16]

My 2000 Jeep Grand Cherokee 4.7 V8 threw a P0306 code and its running pretty rough. What was the set up on that extension you used for the back bolt? Going to change at least that #6 plug. Thanks for posting and I am a new subscriber. Cheers

[@OnlineAutoRepairVideos]

Hey Reginald, here is what we used: kzbin.info/www/bejne/iovLc5xor8aCrLs

[@regrob16]

@@OnlineAutoRepairVideos Thanks again

[@NoneMechanic101]

Good job

[@victorvillasana3409]

I saw Jaimie wearing gloves, was she working on the car too? Or was she just cold? I like that some of your customers offer a snack, that shows that they are good humble people. Coffee would be great on chilly days. My favorite

[@OnlineAutoRepairVideos]

No, lol, she was doing yard work which she really loves. Her and her husband invites us over for a great dinner and movie, GREAT PEOPLE!!

[@jamieewing692]

Victor Villasana Hi...I was working in the garden with gloves when Tim arrived. It was pretty chilly!

[@ManicMechanic007]

Happy Birthday Jamie!

[@christboukamba7096]

sorry , I have a probleme with my 2002 jeep grand cherokee laredo 4.0

[@christboukamba7096]

every morning , when i start my car in the morning it takes time to change the speed.after change ,it rolls better

[@OnlineAutoRepairVideos]

It might be time for a transmission filter change. Also, before you do that, check the fluid level and the color of the fluid. If it looks like motor oil, you may have a problem within the transmission.

[@NoneMechanic101]

Happy BirthdayJaimie

[@OnlineAutoRepairVideos]

Thanks Hector, I'm sure she'll see your message!

[@jamieewing692]

Thank you!

[@juniorsanon9272]

How much time it will take to do this job for someone who is just okay with his hands?

[@OnlineAutoRepairVideos]

I would say about 1 1/2 hours

[@juniorsanon9272]

⭐ Astral Auto Repairs Alright I will try this tomorrow thank you

[@juniorsanon9272]

⭐ Astral Auto Repairs I have a little problem here! When I tried to remove the first wire on the accelerator, the little plastic broke. (I'm from Canada. The winter is rough for plastic piece). Can I drive with the car without this wire connected. It's the first one when you are in front of the car. Thank you for the answer.

[@OnlineAutoRepairVideos]

As long as it's not the accelerator cable, yes you can, you just won't have cruise control. Let me know how it goes.

[@juniorsanon9272]

Just finish the job! I replace only the spark plug and everything seems fine. My only issues was putting back the spark plug, I didn't find any hose. So I wasn't sure if it was straight in the hole. How can I make sure? Thank again for your help and video!!

[@samueladams2649]

Did Tim just use a real spark plug socket ? Lol 😂

[@OnlineAutoRepairVideos]

LOL, yeah you saw it right

[@Iseekoutthetruth]

in Indonesia Everyone one Loves The Jeep brand there, They think everyone in America drives a Jeep.

[@OnlineAutoRepairVideos]

Lol!

[@sloppyoppie]

12:10 .....seriously.

[@OnlineAutoRepairVideos]

LOL!