3800 series engine problem!

[philipk65]

I have this ongoing problem that no one can solve!

I have a '95 Olds 88 3800 series. The problem is that when the car sits for 45 minutes after being driven (cools down 3/4's of the way) and you start it up again it shutters and acts like it's flooded. I've had it look at by mechanics and they said the code tripped was caused by the EGR valve. $250 later and a new EGR valve I still have the same trouble!

Also they checked the fuel pressure regulator and it was fine.

Any suggestions what the real problem could be.

Thanks in advance! Kevin

[maxwedge]

Many things can cause this and require more comprehensive diagnosis. Are you loosing any coolant, even small amounts that are not visible? Also a leaking injector can cause this issue, this is another step in the diagnostic processs, testing for injector leak down. Only on site analysis will find/correct this.

[acidcrashdburnd]

Originally Posted by philipk65

I have this ongoing problem that no one can solve!

I have a '95 Olds 88 3800 series. The problem is that when the car sits for 45 minutes after being driven (cools down 3/4's of the way) and you start it up again it shutters and acts like it's flooded. I've had it look at by mechanics and they said the code tripped was caused by the EGR valve. $250 later and a new EGR valve I still have the same trouble!

Also they checked the fuel pressure regulator and it was fine.

Any suggestions what the real problem could be.

Thanks in advance! Kevin

all right drive the car car like you normally do and let it sit for the 45 minutes
BUT the next time you go to start it after sitting hold the gas peddle to the floor start the car let it crank for 8 seconds repeat that again then start normaly that should be the clear flood thing on these cars and most other cars
see if it does it then and tell us how it works out

[philipk65]

Great! Thanks for the info guys. I'll try them and see what kind of results I get. Thanks! Kevin

[Scrapper]

ok you checked fuel pump?? because it still sounds like fuel pump ok you need to check your cps (crank position sensor)...good luck...


scrapper....

[auto trainy]

Just a quick question,when the car starts do you see any light or dark smoke coming out of the exhaust?

[philipk65]

Auto Trainy,

I don't notice any smoke of any kind.

Where is the best place to get this problems diagnosed. A dealer or who? The independents I think don't have the right equipment the fix the problem.

How can you check a fuel pump? Or an injector that has a leak down?

How about a Crank position sensor?

[maxwedge]

FP, leaking injectors, and cps can be checked by any competent tech with a full line scanner, fp gage and multimeter. Same basic info I posted above.

[philipk65]

Maxwedge,

Thanks! I'll make such the tech does these test you described. Thanks again! Kevin