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Professional Automotive Repair Technical Discussions for February 28, 2018 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2011 Buick LaCrosse CXS 3.6L MIL Lamp on VIN: 1G4GE5EDXB I have gone over everything with this for running rich at idle. I also went through it with identifix help line and came up with nothing. The fuel trims at idle are -30 lt & st for both banks. If you reset fuel trims they are back up in just minutes. The car r... Trouble codes: P2188, P2190 |
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| 2005 Chevrolet Suburban 1500 LT 5.3L MIL Lamp on VIN: 3GNEC16Z95 Started off with the customer stating could not fill tank and engine light on Po455. Smoke tested system and checked functions of the purge and vent solenoid. Found the Vent clogged with charcoal. Found in lines also. Blew through lines and replaced vent v... Trouble codes: P0455 (EVAP Large Leak Detected) |
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| 2010 Chevrolet Malibu LS 2.4L flooded VIN: 1G1ZB5EB9A hard start no start first start in a.m. flooded. overnight fuel injectors are being activated and draining fuel rail. sat all day with injector rail pulled up, I placed a clean paper floor mat under to check for inject drip/ leak down, nothing all day come in ... Trouble codes: P0172 |
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| 2003 GMC Yukon Denali 6.0L Starter VIN: 1GKEK63U23 Vehicle will not start, checked power going out from ignition good, got power all the way to the idpm just have nothing coming out to tell starter to engage, checked all wires, found no broken wires, I've been pulling my hair out now for about 3 1/2 hrs. A... |
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| 2013 GMC Acadia SLE 3.6L Air Bag Communication VIN: 1GKKVPKD3D Vehicle came in for body damage to the left rear door. Replaced the door but swapped the door module. Had no light on for 3 days then the airbag light came on for B0087 and B0086 Left rear and Rt frt impact sensors. Brought the truck inside the next day an... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2006 Cadillac SRX 3.6L No Start, Can not remove Key VIN: 1GYEE63796 Ok we Installed a Used PCM from a Known Good SRX, and I programmed and programmed theft again... Took out for a drive and first light that Popped up was the Theft Light... After about 5 miles same codes all over in the All Modules... that is when I decided to ... Trouble codes: U1300 (Class 2 Data Link High), U1301 (Class 2 Data Link Low). |
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| 2009 Cadillac Escalade Hybrid 6.0L MIL Lamp on VIN: 1GYFK43559 THANK YOU GUYS. WE DID PERFORM TSB MULTI TIMES AND COMPARE THE DATA WITH ANOTHER 2009 GMC WE HA HERE WITH 6.0.MUST BE FAULTY AFTER MARKET CATS. I SPOKE WITH USED CAR GUY HE SAID SAID HE BOUGHT ON LINE. MUST BE VERY CHEAP CATS.HE PICKED UP THE TRUCK AND WILL RE... Trouble codes: P0420 (Bank 1 cat efficiency), P0430 (Bank 2 cat efficiency). |
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| 2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDT13S34 Thanks to all. I started with the large evap leak because it's easy to run the service bay test (which closes the vent and you can command the purge) and watch the tank pressure. We have been changing a lot of FTP sensors lately. With no FTP change, I checked ... Trouble codes: P0172, P0455. |
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| 2013 Chevrolet Silverado 1500 LT 5.3L Misfire VIN: 3GCPKSE79D Thank you for all the replies, I'm very sorry for the late reply. I've had horrible problems posting on the Iatn this time, I had included a lot more test data that disappeared when posted, then I could only add one update. Anyway, I believe the cam and lift... Trouble codes: P0303, P015B, P0455. |
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| 2015 Chevrolet Sonic LT 1.8L Misfire VIN: 1G1JC5SH9F Hello All, Many thanks for everyone's response. I found the alternator was intermittently charging over 15V. I discovered this as I was current ramping the injectors and ignition coil trigger I found the current was increasing dramatically as I was checking ... Trouble codes: P0261, P0264, P0267, P0353, P2306, P2307. |
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| 2007 Pontiac Vibe 1.8L dash lights VIN: 5Y2SL65867 I kept checking for a short. We found a rubbed wire, main dash harness, behind glove box. Fixed. No parts needed except a blown dash bulb, Thanks Guys |
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