𝐒𝐓𝐎𝐂𝐊 𝟏𝟗𝟖𝟒 𝐂𝐎𝐑𝐕𝐄𝐓𝐓𝐄 𝐂𝐀𝐑 𝐂𝐑𝐀𝐍𝐊𝐒 𝐁𝐔𝐓 𝐖𝐎𝐍'𝐓 𝐑𝐔𝐍

𝐈𝐅 𝐈'𝐌 𝐖𝐎𝐑𝐊𝐈𝐍𝐆 𝐎𝐍 𝐌𝐘 𝐂𝐑𝐎𝐒𝐒𝐅𝐈𝐑𝐄 𝐈 𝐔𝐒𝐔𝐀𝐋𝐋𝐘 𝐇𝐀𝐕𝐄 𝐀 𝐃𝐈𝐆𝐈𝐓𝐀𝐋 𝐌𝐔𝐋𝐓𝐈 𝐌𝐄𝐓𝐄𝐑 𝐈𝐍 𝐌𝐘 𝐇𝐀𝐍𝐃. 𝟒𝟎% 𝐎𝐅 𝐀𝐋𝐋 𝐄𝐋𝐄𝐂𝐓𝐑𝐈𝐂𝐀𝐋 𝐈𝐒𝐒𝐔𝐄𝐒 𝐎𝐍 𝐓𝐇𝐄 𝟏𝟗𝟖𝟒 𝐂𝐎𝐑𝐕𝐄𝐓𝐓𝐄 𝐀𝐑𝐄 𝐆𝐑𝐎𝐔𝐍𝐃 𝐅𝐀𝐔𝐋𝐓𝐒. *𝐅𝐀𝐂𝐓𝐎𝐑𝐘 𝐒𝐄𝐑𝐕𝐈𝐂𝐄 𝐌𝐀𝐍𝐔𝐀𝐋 𝟖𝐀-𝟔.*
★彡 𝐍𝐎 𝐒𝐔𝐂𝐇 𝐓𝐇𝐈𝐍𝐆 𝐀𝐒 𝐀 "𝐁𝐀𝐃 𝐂𝐎𝐑𝐕𝐄𝐓𝐓𝐄" 𝐓𝐇𝐄 𝟏𝟗𝟖𝟒 𝐂𝐎𝐑𝐕𝐄𝐓𝐓𝐄 𝐈𝐒 𝐏𝐀𝐑𝐓 𝐎𝐅 𝐂𝐎𝐑𝐕𝐄𝐓𝐓𝐄'𝐒 𝐑𝐈𝐂𝐇 𝐇𝐈𝐒𝐓𝐎𝐑𝐘. 𝐌𝐘 𝐂𝐎𝐑𝐕𝐄𝐓𝐓𝐄 𝐈𝐒 𝐅𝐎𝐑 𝐓𝐇𝐄 𝐌𝐎𝐒𝐓 𝐏𝐀𝐑𝐓 𝐀𝐋𝐋 𝐎𝐑𝐈𝐆𝐈𝐍𝐀𝐋 𝐌𝐀𝐓𝐂𝐇𝐈𝐍𝐆 𝐍𝐔𝐌𝐁𝐄𝐑𝐒 𝐋𝟖𝟑 𝟑𝟓𝟎 𝐂𝐔 𝐈𝐍 𝐒𝐌𝐀𝐋𝐋 𝐁𝐋𝐎𝐂𝐊 𝐂𝐇𝐄𝐕𝐘 𝐖𝐈𝐓𝐇 𝐓𝐇𝐄 𝐎𝐑𝐈𝐆𝐈𝐍𝐀𝐋 𝐌𝐎𝐃𝐄𝐋 𝟒𝟎𝟎 𝐑𝐎𝐂𝐇𝐄𝐒𝐓𝐄𝐑 𝐃𝐔𝐀𝐋 𝐓𝐇𝐑𝐎𝐓𝐓𝐋𝐄 𝐁𝐎𝐃𝐈𝐄𝐒, 𝐒𝐓𝐀𝐌𝐏𝐄𝐃 𝐂𝐀𝐒𝐓 𝐈𝐑𝐎𝐍 𝐇𝐄𝐀𝐃𝐒 # 𝟒𝟔𝟐𝟔𝟐𝟒, 𝐃𝐀𝐍𝐀 𝟑𝟔 𝐃𝐈𝐅𝐅𝐄𝐑𝐄𝐍𝐓𝐈𝐀𝐋 𝐀𝐍𝐃 𝐓𝐇𝐄 𝐆𝐌 𝟕𝟎𝟎𝐑𝟒 𝐓𝐔𝐑𝐁𝐎 𝐇𝐘𝐃𝐑𝐀-𝐌𝐀𝐓𝐈𝐂 𝐂𝐀𝐒𝐓 𝐀𝐋𝐔𝐌𝐈𝐍𝐔𝐌 𝐓𝐑𝐀𝐍𝐒𝐌𝐈𝐒𝐒𝐈𝐎𝐍 𝐖𝐇𝐈𝐂𝐇 𝐈𝐒 𝐒𝐓𝐈𝐋𝐋 𝐂𝐎𝐍𝐒𝐈𝐃𝐄𝐑𝐄𝐃 𝐎𝐍𝐄 𝐎𝐅 𝐓𝐇𝐄 𝐁𝐄𝐒𝐓 𝐓𝐑𝐀𝐍𝐒𝐌𝐈𝐒𝐒𝐈𝐎𝐍𝐒 𝐄𝐕𝐄𝐑 𝐌𝐀𝐍𝐔𝐅𝐀𝐂𝐓𝐔𝐑𝐄𝐃 𝐁𝐘 𝐆𝐄𝐍𝐄𝐑𝐀𝐋 𝐌𝐎𝐓𝐎𝐑𝐒. 彡★
#CRANKSBUTWONTRUN

[@carltonsolomon7853]

Because of you I am able to diagnose my Corvette. Thank You.......

[@edwarddesantis2486]

You were very informative and helpful. You are better at video than you know.

[@HorseshoeBeach]

I appreciate that!

[@carltonsolomon7853]

I love listening to your observation concerning the 1984 corvette. I am definitely learning alot. Thanks..

[@HorseshoeBeach]

Very welcome

[@dimonmechanic3582]

I have my c4 for 24 years,I had a same problem before it cranks but won't start, replace the fuel pump and run like a champ 💪 now. Like your videos sir, keep up with the good work...

[@HorseshoeBeach]

Thanks for the comment DMZ , that is a really nice looking 84 you have with that trim package.

[@frankparkin1042]

Glad my 84 run well you have learned me a lot

[@vale8495]

Hi I have an 84 Crossfire it stopped cranking today . It would run for a second with starter fluid.

[@Daehawk]

Always the fuel pump on these old crossfires. Back in the day people around here called them Wontfire or Dontfire.

[@HorseshoeBeach]

Or the Ignition Control Module in the old HEI distributors.

[@johnnyjackson1616]

I got a 84 Corvette the cooling fan in the front of thwater pump would not cut off with engine cut off disconnected 1 wire now fan still running but car won't start. What's going on??

[@AradNukka]

What book is this i must order it! Having many electrical issues on the 84 I just got from my grandad. Would love to talk with you if possible!

[@HorseshoeBeach]

That's the supplement to the factory service manual...I couldn't do without it, kinda pricey now: www.ebay.com/itm/1984-Corvette-Electrical-Troubleshooting-Shop-Manual-IN-COLOR-Chevy-Chevrolet/401506266189?hash=item5d7ba36c4d:g:U7cAAOSw2Ptapxou

[@HorseshoeBeach]

let me know if I can help.

[@wsii994]

Disconnected distributor for replacement and cranked the engine to make top dead center. Reinstalled distributor and now engine will crank but never starts. No codes other than Code 12. Coolant sensor and circuit are good. Why cant I get it to start?

[@efrainberrios8494]

Great information! Thank you!

[@HorseshoeBeach]

Thanks for the feedback. You're welcome.

[@metlmappr]

I've been watching your videos on youtube, you have some GREAT info on your channel. Back to my temp sensor to ecm, after watching your channel and purchasing a shop manual online, i believe the shop didn't "train" the sensor to the ecm. If i was to drive the vehicle at running temp, over 40mph now, will that correct the issue? I'm in process of attempting to locate a shop, maybe the GM dealer, who will look at it and get my car running good again. Also, if you're not a member of the facebook page "84Corvette Crossfire Owners & Restorers Association", please consider requesting to join, i've been telling other guys on the page about your youtube channel and think you could help others and maybe some on the page could help you with your 84C4. Thanks again........Terry

[@HorseshoeBeach]

Terry, I don't know if driving the car up to operating temp at 40 MPH will solve your issue or not. What I was saying, The ECM: FSM 6E2-5 ECM Learning Ability, DATA is **compromised** even if the battery is disconnected. If any of the DATA sensors that feed directly into the ECM are changed or adjusted the ECM will use the old data it has stored until it re-learns the new data, which is learned through driving the car as outlined in 6E2-5 in the FSM. **I never found a mechanic in 5 years that was interested in working on the Crossfire, I even took it to the local GM dealership...I was told to join one of the Crossfire Forums...today's mechanics just DO NOT have the experience to work on these old cars....the Diagnostic Tools don't even connect up to these old cars. They politely refused to get involved. Therefore I had to go it alone. Started taking things apart one piece at a time. LOCAL Mechanics....basically said they have working customers that need their cars to GO TO WORK and said I would have to wait until they had some SPARE time. I don' have a facebook account but I appreciate your sharing any info you find helpful. Again though, I'm not a mechanic...just another Crossfire owner trying to find my way through working on these old cars. Which I enjoy immensely. **Let me know if I can help with anything...more than happy to share.**

[@metlmappr]

@@HorseshoeBeach I have 1 more question, from what you've said, it sounds possible that i simply need to drive the car to "train" the ECM to teach the sensor and ECM to communicate, so should i disconnect the battery and start over? I've found a "speed shop" that works on performance cars, including Vettes, but he has said that the "crossfire" is a strange bird, so I think he is hesitate to work on it, but is willing to attempt to correct the issue. The car starts fine, I just haven't driven it since the issue last occurred, it was a great running car, just looking thru the service manual i've picked up on a few things. You've been extremely helpful and i've told others about you and your youtube channel. With your permission, i will share your videos on the facebook page for the other 84C4 guys. I hope you still have your 84, haven't seen any "new" videos as most appear to be 1+ years old. But thanks again, and let me know if you thing i should disconnect the battery and start fresh? Terry

[@HorseshoeBeach]

I still have the 1984, my first Corvette, it will never be sold....just been really busy. The Speed Shop is right about the Crossfire..it is a very strange bird for sure. You can share on facebook if you want to, I'm **NOT** a mechanic, I just went through every system, and I mean** every** system and started repairing things running all the FSM test, filmed it, then shared it on this channel. Hope it helps someone else. Again, not sure if driving the car to operating temp and 40 mph will solve your issue, just saying, that is part of the process after installing a data sensor.....worth a try anyway. If you disconnect the battery the car will use the data stored in the PROM....until it sees and stores any NEW data.

[@metlmappr]

@@HorseshoeBeach Thanks for the reply. I drove it today, but didn't disconnect battery, drives ok until temp gets over 210, then runs very rough, being a cool day today, while driving the engine temp only made it to 190, so it runs good, but once i pulled into the garage and left it running so temp would go up, once in hit 210 it runs rough and stopped, and then of course will not start, until fuel drys up, you can smell fuel bad when it stops. I'm going to take it to the speed shop and see if he can help. I do want to thank you for your help, you did help me, just watching your videos was very educational. Also i've shared 1 of your videos on the facebook page and some of the other guys love your stuff. So keep up the great work, you say your not a professional mechanic, but you really explain what you're doing and you are helping guy-gals with the 84C4. Thanks again......Terry

[@metlmappr]

Just found you on youtube. Question: my 84C4 in extreme hot weather was idling low and flooding out, I was told to replace the temp sensor to ECM, had that repair made, now car runs awful, idle erratic, check engine light came on, going to take to a shop, but they "all" hate on the crossfire, any suggestions?

[@HorseshoeBeach]

metlmappr, if you changed the CTS on the front of the engine block, they are sensitive, torque is 9 Ft Lbs. (I think on the torque), too far in or not far enough in causes bad issues, ** if air got inside the cooling system, that will make the car run like it has a cracked block, ** after changing that cts sensor out, the car has to be driven at least 40 MPH for the ECM to store new data, or else it will use the old data it has stored...idling at operating temp will not be sufficient. SOME aftermarket CTS's do not have the correct OHM settings and although they say they FIT a 1984...not necessarily. NO one wants to work on these crossfire anymore, sad because they are incredible running engines, regardless of the rumors, and very easy to work on. The **THERMAC** system on these cars are responsible for a lot of idling issues...but other sensors causing issues are the IAC valves: idle, the MAP sensor, and the TPS...if it has a flat spot on it that will also cause stalling, all easy to work on and simple to diagnose. MOre than happy to help if I can.

[@HorseshoeBeach]

if air got inside the cooling system it will hang up at the CTS, car will run horrible, have to flush the air out.

[@HorseshoeBeach]

I can also tell you, regardless of what the FSM says or anyone else says, these old crossfires do not run well on 9 PSI they need at least 10 PSI otherwise they are seriously struggling.

[@metlmappr]

@@HorseshoeBeach thanks for the reply and the info, i will pass this on to the shop that will be doing my repairs on this. I really appreciate your input, from watching your videos and your reply to me on this issue, apparently your skills indicate you must be an auto technician or mechanic. I'm curious if you're on facebook, there is a dedicated group of 1984 C4 owners and enthusiast that would love to hear your input, knowledge and experience you seem to have on the crossfire engine. If you're interested, look up on facebook to join 84 Corvette Crossfire Owners & restorers Association, you must have an 84C4 to join and I'm sure you will love it, as well as the group enjoy your knowledge and input.......

[@HorseshoeBeach]

I'm not a mechanic, just started working on my own cars as a teenager, purchased this Crossfire sitting on the side of the road in very poor shape, about 5 years ago. As you have found out, could NOT find anyone who wanted to get involved in it. Had one mechanic ask me to "COME PICK THIS UP". So I purchased a FSM and started taking it on one piece at a time, asking as yourself and learning as I went along.

[@itsok5079]

My problem was had to start 3or4 times to run my fuse link was not burned but broken when I jumped the fuel pump fuel pump would run but no injector pulse fixed fuse link and starts first time every time . Every time I tried to run it down could not find it harness wiggle all that. I Chased it for 2 years finely I started pulling on the fuse links and found it.but it always started 3rd try so if your having that problem. It always checked good so there you go.

[@SpeedDemonExpress]

Where is this fuse link located?

[@20012337]

Selling my ‘84 Vette if you’re interested!

[@HorseshoeBeach]

Have to many other projects right now.