I have an 85 Vette and i just bought it 4 days ago. Friday i took it out for its first trip and stopped at a store. I was in the store for maybe 10 mins and when i came out, the car would fire, but then quit on me. I replaced the GM Control Module because i was told that that could be the problem, but it didnt fix it....please help!

 

Welcome to the Forum.

What was it lacking? Fuel? Spark? Compression? A lot of things can become affected by the heat. It would pay to do some trouble shooting rather than just throw parts at it on another's whim. I can tell you what MY problem was, but yours is probably different. I strongly suggest you invest in a service manual for your new car. Try here: http://www.helminc.com It has lots of trouble shooting diagrams for specific problems. Good luck, and...

RACE ON!!!

 

Sounds like a fuel systems problem rather than ignition.

Welcome to the Forum (home)!

 

ok so a lil update that may help. After looking at the car with a neighboor, we have also ruled out an ignition problem. The fuel rail is getting fuel tho. i dont know if that means ne thing but i dont know much about this stuff either....im also not getting any kind of check engine light.

 

bastet44's 87 had the same problem... found it was a weak Mass Airflow Sensor.

 

Could be MAF, or possibly fuel injectors.

Are you getting any SES lights?

 

no im not getting any lights at all...im gonna have to try that maf....or just take it to the shop....thanks again!!

What exactly does the MAF do ne way??


[Modified by chillz_04, 11:30 PM 7/5/2004]

 

The MAF sensor measures the amount of air going into the engine, so the ECM can calibrate how much fuel to put in.

 

I did not get a code on bastet44's car until I washed the engine. As soon as I restarted it, the code appeared and the enginr ran like crap.

I replaced the MAF, the new found code and poor running cleared, as did the hot start problem.

 

ne chance someone could help me find the MAF on the car...once again im very new with this stuff

 

The MAF sensor is the sensor between the air filter and the accordian that leads to the Throttle Body.

 

thanks guys for all the help...im gonna try the MAF tomorrow, ill get back to ya's and let u know if it fixes the problem

 

Whoa whoa whoaaaaaaa there. Don't go throwing expensive parts at the car! Do you have a hand-held fuel pressure gauge? If not get one. They are cheap and very valuable for the $20 or so they cost. Run the car for 10 minutes or so in the driveway with the gauge attached and then monitor the fuel pressure for 10 minutes or so.

Why all this? L98s are very suceptable to leaky fuel injectors. When hot they will leak into the cylinders causing a very hard or no start condition.

 

just check the MAF, disconnect it and see if anything improves, or tap the sensor with a screwdriver lightly

and also check the fuel pressure, it should hold steady for several minutes after shutting down

 

ATTA BOY! Just keep firing parts at it until it's fixed. Sooner or later, either the problem will go away or your bank account will.

RACE ON!!!

 

Yo, Chillz. Congratulations on your new ride. You have now entered the Corvette Zone. Roads, avenues, even traffic itself, will have a new, freshly different, pleasantly scewed appearance and allure. You will actually enjoy driving again. But........it's gonna cost you. If you have a credit card with $100 available, call Helm's right now at 1-800-782-4356 and order the correct factory manual for your car. That's right, do it now because that puppy is gonna take 2-4 weeks to com in. You see, they don't have them sitting on the shelf. Oh no, they print on demand. Next, go drop $20 on a Haynes (now you have something in front of you to go by). OK, let's talk tools.
Of course, you need all the regular hand tools: open and box end wrenches, complete variety of screwdrivers (phillips, flat, Torx), jumper wires and cables 8-),sockets (3/8 and 1/4 in drive, shallow and deep wall, metric and standard, manual and air-driven), ratchets and extensions, Torque wrench, pull handles and cheater pipe, dead blow hammer and the rubber kind you can throw, adjustable wrenches, a large C-clamp and channel locks.
A 12 volt test light, a digital multimeter, a paperclip, battery charger or better yet, one of the booster packs with the battery built in.
Oh yeah, hydraulic floor jack, jackstands, 2X4 and Rhino Ramps (gradual angle=low ground clearance of car).
And, while you're at it, get a compressor with air wrench, air rachet, cut off tool, DA sander, and good paint gun. Gee, what did I forget?
Now, we're ready to talk about what might be wrong with your car.
OK, forget about the credit card. Let's start talking home equity line of credit so you might recoup something!
Just kidding,

Welcome to the Forum.

 

lol thanks!

 

alright, maybe i should listen to ya's when u tell me what to do.....i tried the MAF today and the problem still continues. good thing about it, i didnt pay for the MAF, tomorrow ill have to try the fuel pressure gauge. thanks again