super flash

my iroc TPI wont start again after i drive it for a while and turn it off. its cranks too slow that the engine wont start. ive already change the start the alternator and the battery. ill let it cool and thern it starts. any help? oh and the other camaro doesnt even crank after the same ****. im really bummed and am thinking about getting rid of them. please help.

SpitotRs305

do you have headers?

super flash

no sir. but ive always wanted them

SpitotRs305

your problem sorta sounds like heat soak... or a faulty starter/batter/alt but as you have changed those i would go with heat soak where the starter gets to hot and wont turn the engine... you could try some heat shielding around the starter... but check the ground and power from the battery too

1fastam

iTrader: (1)

check your timing ,sounds like its high.jimmy

SpitotRs305

but if it was just timing then it would do the samething cold

1fastam

iTrader: (1)

cool engine will crank with timing high though,then wont crank hot

super flash

exactly so its not that. i had to leave it at the gas station for a few hours and when i went back it turned on like nothin. i had to walk 5 blocks.

SpitotRs305

sounds like heat soak to me... you live down south?

super flash

no chicago

super flash

so how do i fix heat soak? i need a fix!!!

SpitotRs305

you could try some heat shielding around the starter i think summit might even sell a heat shield for the starter

super flash

problem solved but it wasnt the starter. can anyone guess what it was? i dont know why i couldnt figure this out before.

SpitotRs305

ummm bad ground?

dennine3003

so what was it????I'm having the same problem with my 89 RS. Everyone was telling that I needed a heat shield but I don't know. So please tell me what you found out.

Thanks

super flash

it was the plug that goes into the alternator. that ***** was loose. i found out after the alternator went bad because of that plug. i had just replaced it too. luckily i had a warranty.

SpitotRs305

so you had to charge the battery in between starting attempts?

super flash

nope. i guess that loose plug just made it hot. wither the laternator or the starter. i would just wait like an hour and it kick up like nothin. the clip was broke on the plug for the alternator. i guess it was a bad ground.

dennine3003

Mine is ok, I guess it's heat soak for me. Does anyone have a good idea where I can find a heat shield for my starter?????? Please let me know.

Thanks for your time!

SpitotRs305

check out summit i think they have a couple

super flash

oh **** me. it started again. im going to give up on this car. its a pain in the *** i tell ya.

Dispute

i just got an 89 camaro on friday and found out about heat soak pretty quick. Im probably just going to buy a new starter but i was wondering if i will still have the same probelem if the starter is brand new?

thunder85

iTrader: (1)

i don't know how this would apply to the efi, but my 68 chevelle had the EXACT problem you are having. would start cold NO PROBLEM... as soon as it was warm, it wouldn't start... starter could barely turn the engine over. turns out for me, it was the vaccum advance unit being frozen. when cold, the timing was dead on, but as the engine warmed up, the advance couldn't move, thusly it was incorrect for the warm startup conditions. could any particular sensor or issue cause this scenario to occur with the efi systems?

i also tried all the heat shielding, etc and it did nothing in that scenario either. i know its a very different car, but i just had to mention it because its the exact same set of symptoms. that, and i have had 3 different thirdgens, all with manifolds, then headers and have never had a heat related starting issue.

SpitotRs305

there are a few things that could cause this
1 being heat soak... give your starter a feel when it wont start... did you burn yourself or what?

2 bad ground that would be more of a eratic condition

3 combo bad ignition module/heatsoak/ground

so start checking things

thunder85

iTrader: (1)

good call... ignition module would be very affected by heat, and would cause something like what u are dealing with. 35 dollars and about 25 minutes to replace... not a bad thing to just swap out. especially if its old.

jimdutro

iTrader: (1)

Good advice, get a heat-shield for the starter & solenoid and check or replace the module. Summit will have both and their price is probably the cheapest. Check your connections !

super flash

i changed the starter and it still persisted.

TREK

ive heard you could put a smaller gear reduction starter and it will help on the heat soak. summit sells it, though its a bit pricey compared to the stock starter.

89N10GTA

iTrader: (1)

i had the same problem was my 86 305 z28. it ended up being the battery cable running to the starter. peel the cover back by the battery check the color of the wire. if there is any green on the wire replace it. it should look like copper like a penny.

thunder85

iTrader: (1)

he's right. logically, it can't be heat soak, not with a factory exhaust and a brand new starter. if it were timing, the starter would be pushing very hard, and would jump on the flywheel (been there, seen that), and he didn't mention that it was jumping. so basically its a current flow issue. cheap to replace/fix. replace both the primary ground line and the primary power to starter line. make sure your battery contacts are very clean. good call 89N10GTA

jimdutro

iTrader: (1)

My `88 383 TPI also cranks slow only when hot, 15 minutes or less of shut off. Stock exhaust, recent tune-up, always done this.

super flash

well, i got fed up and didnt have time to do it so i took it in to a mechanic and he said the distributor was bad. something about not grounding right. its all good now.