Question about GMC Sierra 2500
Tune up for gas is different in the timing compared to lead or unleaded fuel by upto 12 degrees
the two computers control the engine management & the transmission
when you switch between nat gas & fuel a solenoide is activated to block ether so they cant mix
if they did mix your gas would freeze the fuel & you would see the fuel pipes start to get iced up
Posted on Jul 29, 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:
Oct 26, 2016 | 2000 GMC Savana
Jun 27, 2016 | 2000 Jeep Grand Cherokee
The engine and transmission in this cars drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL THE DIAGNOSIS & TESTING IS COMPLETED.
Jul 12, 2012 | 2005 Mercury Montego
Feb 07, 2012 | 2003 Nissan Altima
Sep 20, 2010 | 1994 Geo Tracker
May 24, 2010 | 1992 Dodge Caravan
Aug 28, 2009 | 1998 Ford Contour
Apr 18, 2009 | 2000 Suzuki Esteem
71 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: