Question about GMC Cars & Trucks
This is a list of what i've done to it so far...i have replaced the motor mounts and plugs...oil changed and added fuel injector cleaner...
Posted by Anonymous on
I think what you might have is called dieseling on shut off. Newer engines run much hotter than older vehicles and require a fuel shut off solenoid close to the engine. If this solenoid goes bad, on vehicle shut off, excess fuel is still being fed to the engine. Even though there is no spark because the key is off, the engine is hot enough to ignite the fuel causing the shake and shudder. I'm not 100% sure of this but thats what it sounds like. If the solenoid is working properly and shuts off the fuel line like it should there is no excessive fuel to ignite. Thus no shake or shudder.
Posted on Apr 10, 2015
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Posted on Jan 02, 2017
Tips for a great answer:
Nov 28, 2015 | 2004 GMC Envoy SLT
Mar 01, 2015 | 2004 GMC Envoy
Sep 07, 2012 | 2003 GMC Envoy
Gear Kit, Steering
(Short Wheelbase Utilities)
Gear Kit, Steering
(Long Wheelbase Utilities)
Warranty InformationFor vehicles repaired under warranty, use:
Gear Assembly, Power Steering - Replace
Use published labor operation time
Toe, Front - Adjust
May 03, 2012 | GMC Envoy XL Cars & Trucks
Nov 02, 2011 | 2004 GMC Envoy
May 02, 2011 | 2004 GMC Envoy
Please see my tip at http://www.fixya.com/cars/r5932051-check_engine_light_check. These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.
Oct 24, 2010 | 2004 GMC Envoy
Feb 18, 2009 | 2004 GMC Envoy
Sep 19, 2017 | GMC Cars & Trucks
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