My V8 5ltr 88 iroc does start but takes alot of cranking. I can here the fuel pump priming but does sound a bit rough? Is that the problem or is it pressure reg failed alowing fuel o frain back to the tank? Any help or advice is good!
Cheers

 

if the regulator doesnt work the car would run like crap. get a guage on that shrader valve and see what your PSI is.

How long has it been since you changed your spark plugs?

 

ive had th car a year, ive done 20,000 miles so yehprobly bout time i changed the plugs? what psi shud i have ?

 

I see you're in england, that is cool


Things to check - fuel pressure.

Check it before you even put the key in it in the morning.

Then turn the key to the "on" position and check the fuel pressure.


Then have your wife/kid/neighbor/someone walking the street crank the car while you watch the cranking fuel pressure

Check idle fuel pressure

Check WOT fuel pressure

Check it after you turn the car off

Check it 5 minutes after you turn the car off

Check it 10 minutes after you turn the car off

Check it 1 hour after you turn the car off

(those 4 w/o putting the key in the igntion)

report back with numbers



Check your timing. Stock it should be 6* advanced (with the EST unplugged).


If all of that checks out OK you can always bring your starter in to just about any parts store (atleast here in the US you can) and ask them to test the starter.


Good luck and report back

 

here i am a year later an the head gasket has finally given up! wata bitch of a job that was. recon it was that in the end ani was jus ignorin it.