Question about 1992 Chevrolet C/K 2500
Your truck should have throttle body injection. Most of the electronic issues that will cause a high idle will turn on your check engine light. If it's on read the codes and check it accordingly. If it's not on then you most likely have a vaccum leak. The most common by far is a failed base gasket for the throttle body. Second is the hose for the PCV valve failing and splitting. You can check for these leaks by using some water in a spray bottle. Spray the water at the suspected leak while the engine is idling. If it's leaking you will hear the water getting sucked in or the engine note will change.
Posted on Sep 23, 2008
a 6ya Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 06, 2013 | 1999 Volkswagen Beetle
Apr 19, 2017 | 1997 Dodge Intrepid
Oct 23, 2012 | 1998 Oldsmobile Aurora
Feb 14, 2011 | 1991 Chevrolet Silverado 2500
Jul 03, 2010 | 1987 Suzuki Samurai
Sep 17, 2009 | 1999 BMW 323 Series
Mar 05, 2017 | 1992 Chevrolet C/K 2500
129 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: