Where is the bad glow plug on a Chevy?
The local Chevy dealership found that the bad glow plug was also seized into the aluminum head. I had them check the other seven plugs (one per cylinder) and the same plug on the opposite side (number 8 cylinder) was also seized in place.
How to check cylinder # 7 glow plug circuit?
Check the cylinder #7 glow plug by disconnecting the wire connector on the plug. Place the DVOM on ohms and place the red lead on the glow plug terminal and the black lead on a good ground. The range is .5 to 2.0 ohms (verify the measurement for your application by referring to a factory service manual).
Why is the glow plug control module ( gpcm ) not working?
If unable to communicate with the GPCM module, then the U0106 code that the other modules are setting is active, and the problem is there now. The most common failure is loss of power or ground. Check all fuses that power up the GPCM module on this vehicle.
What is the diagnostic code for glow plug?
This is a generic communication system diagnostic trouble code that applies to most vehicle makes and models, including but not limited to Dodge, Ram, Chevrolet, Ford, GMC, and VW. This code means that the Glow Plug Control Module (GPCM) and other control modules on the vehicle are not communicating with each other.
How much does it cost to replace a glow plug on a GMC Sierra?
The average cost for a GMC Sierra 2500 HD glow plug replacement is between $234 and $339. Labor costs are estimated between $126 and $159 while parts are priced between $107 and $180. This range does not include taxes and fees, and does not factor in your specific model year or unique location. Related repairs may also be needed.
What is the code for a bad glow plug on a Chevy?
Last month it showed a continuous check engine light with the underlying code PO677 (a failed glow plug on the number 7 cylinder). The local Chevy dealership found that the bad glow plug was also seized into the aluminum head.
Is the glow plug on my Chevy Duramax working?
Not a rusted out, abused, neglected work truck in any fashion, and although exposed to Mid-Western salted winter roads, it was kept clean and never used to plow snow or have other exposures to excessive salt. Last month it showed a continuous check engine light with the underlying code PO677 (a failed glow plug on the number 7 cylinder).
Why are all of the glow plugs not working?
What ever ones are not working…It is not common for all eight glow plugs to quit at the same time. The glow plug controller has the ability to perform internal checks, an open or a short to ground on each of the glow plug circuits.