ryan

I have a warm start problem that I can not seam to cure on my '83 sc cab.
The car starts fine in the morning, 75 degrees. After getting the car to
operating temperature and parking it for over 30 minutes the car will not
start. If I try to start the car within that 30 minutes it will fire-up.
I have changed the warm up regulator, fuel check valve, fuel injectors,
coil, cd box, cap and rotor...I'm not too sure what else I can do. Does
anyone have any idea what might cause this problem???

Ed Bighi

I don't know if I would have changed or even looked at any of the parts you mentioned until I first looked at the fuel accumulator which sits right behind the fuel filter. When mine went I had similar sypmtoms. I could get it started by turning the ignition on, removind the air box cover and pushing up on the sensor plate to prime the system. If it were my car, I'd say it is the accumulator until someone told me otherwise.

lagoon

Try disconnecting your O2 sensor. Worked for me. 81'SC

J richard

Same diagnois as Ed, I'd check to see if the fuel accumulator is bleeding down. You wouldn't have enough pressure in the system for a hot restart without the additional fuel the cold start valve would give you.