Question about 1988 Chevrolet K1500
I replace the idle control unit and didn't seem to help. It seems like the choke is always on, if it has one. I'm new with throttle bodies. Also, the truck will never start on the first try, fires right up on the second. I did the usual tune up plugs,wire,cap,and rotor. Any suggestion on what i should try next?
Could be the fuel pressure regulator. if too much fuel pressure it would act like the choke is on. as with all fuel injection, the pressure to the injectors vary according to the demand from the engine. It can run anywhere from 12psi to 15psi at idle to 30 psi plus when in demand for power. unplug the vacuum line from the pressure regulator while idling and see if the engine acts different. if not the regulator could be at fault. it will be a round barrel about 1.5" in diameter mounted in the return line with a small vacuum line running to it. while you have it off check the line with your finger for vacuum. mike
Posted on Jan 06, 2009
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 13, 2015 | 1988 Ford Ranger
Mar 07, 2015 | Dodge D150 Cars & Trucks
Feb 11, 2010 | 2000 Chevrolet Silverado 1500
Dec 05, 2009 | 1998 Dodge Ram 1500 4WD
Sep 12, 2009 | 1988 Chevrolet S-10
Apr 10, 2009 | 1986 Chevrolet K1500
Aug 04, 2008 | 1988 Chevrolet Corsica
96 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: