Question about GMC Sonoma
Flashes, engine seems like it needs a sprk plug.
Posted by Anonymous on
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
SOURCE: car wont start
If you are not getting any spark to the plugs and everything else is fine than yes it would be the coil pack. also it could be the ecm if your vehicle is equipped with one.
Posted on Jan 06, 2009
If there is an Auto Zone or any other large auto parts store, have them scan the truck for the DTC codes. The DTC codes will identify the Issues that needs to be addressed in your engine and transmission that has set off the service engine light on. Once the issues has been resolved, the light will reset it self after the third start up and after 40 start up will erase it self from the history as long as there is no additional issues. Good luck and hope this helps, Shift suddenly become very hard. When going from park to either reverse or drive it slams into gear. 1-2 and 2-3 shifts are also harsh. All gears seems to work. Problem may be intermittent: Check TPS for smooth electrical response. If the response is jumpy or erratic at all, replace TPS.
Posted on Nov 11, 2009
When the light comes on without flashing, it just means an emissions problem, when it starts to flash it has become more serious. I suspect that there was an error putting the plugs and or wires. That computer can determine if there is a misfire and it will put out a P040X, code where X represents which cylinder is the problem. This will help you not have to take each one apart. If there are more than one, check each number.
Ex. P0401 means there is misfire on cylinder number 1
P0400 is a random misfire detected.
If you take it to an Advance or Autozone they will usually scan if for free.
By the way, if you used cheap plugs instead of platinum plugs that could do it too.
Hope this helps.
Posted on Nov 25, 2009
Tips for a great answer:
Apr 07, 2013 | 2004 Ford Expedition
Oct 28, 2011 | 2000 Ford Taurus
Dec 14, 2010 | 1997 Dodge Avenger
Jun 13, 2010 | 1997 Dodge Caravan
Nov 25, 2009 | Chevrolet Silverado 1500 Cars & Trucks
Nov 11, 2009 | 1997 GMC Sierra
Aug 12, 2009 | 1991 Buick LeSabre
Apr 12, 2009 | Hyundai Motor 2002 Elantra
Jan 26, 2009 | 2002 Pontiac Grand Prix
Jun 26, 2008 | 2001 Oldsmobile Alero
15 people viewed this question
Usually answered in minutes!