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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 22, 2019
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Open Help Requests for GM
Help Request Answers
2007 Chevrolet Silverado 1500 LTZ 6.0L No Start VIN: 2GCFK13Y17
So i have this one here that came in for no start. Thought it to be the fuel pump so installed pump and still no start. Started checking fuses found no power to number 21 fuse for fuel pump. swapped relay for fuel pump. No change jumped fuel pump relay and... Trouble codes: U0109 (No comm with fuel pump module)
2013 Chevrolet Express 3500 6.6L Hard Start VIN: 1GB6G5BL0D
After sitting we have an intermittent Hard start with slow fuel pressure build via scanner. It does start every time. we caped the return line from the transfer pump to the tank and it starts every time even after sitting over the weekend. There are no ext...

Fixes & Summaries for GM
Fix/Summary Answers
2009 Cadillac Escalade 6.2L Service Suspension And Abs Lights On VIN: 1GYFK23299
Sorry for the delay but I wanted to make sure this was done. The fix was a new suspension module. I spent a long time trying to educate this customer on why it needed to be replaced and that the module failure was not our fault. He also told me that the rea...
2017 Cadillac XT5 Luxury 3.6L Control Modules VIN: 1GYKNBRS2H
What I found was an intermittent connection at the serial data gateway module connector X1 on the pin for the High Speed GM LAN. Caused the pin 14 data link connector wire to all the modules to go from various resistances to open. Replacing the X1 connector co...
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