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Prev Professional Automotive Repair Technical Discussions for May 10, 2014
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Open Help Requests for GM
Help Request Answers
1970 Chevrolet Corvette 5.7L Carburetor VIN: N0TAVA1LAB
I need someone who has the specifications for this Quadrajet. The kit was missing the actual specification sheet, everything else was there. If someone has a sheet from one of these kits it is identified with the slip in the box as sheet "D". I need float lev...
2007 Chevrolet Suburban 1500 LTZ 5.3L digital display VIN: 1GNFK16377
Pulled codes and got two U codes: U0140-00 lost communication with body control module U0121-00 Lost communication with Anti-Lock brake system module Cleared these two codes and on the next scan we got: U0101-00 Lost communication with TCM U0100-00 Lost commun...
2008 Chevrolet Uplander LS 3.9L Floor VIN: 1GNDV231X8
Im not sure where else to look, Just recently when it rains I get water on the far right side of my passenger side floor board, I have read other forums where it is talked about a tube but I cant seem to find one. Any other suggestions as to where to look for ...

Fixes & Summaries for GM
Fix/Summary Answers
1996 Chevrolet Lumina 3.1L Cooling fans VIN: 2G1WL52M7T
Heres what I found for cooling fan operation:The primary cooling fan operates when engine coolant temperature is above 226F with A/C Off or 223F with A/C or Defrost functions requested and vehicle speed is less than 50 mph. When A/C refrigerant pressure is g...
2005 Chevrolet Cobalt 2.2L immobilizer light VIN: 1G1AK52F05
Hi all, as was mentioned by many, the problem was the ignition switch. The resistor is inside of the switch on this model. It is recommended that the dealer part be used. Seeing that we don't have a GM dealer here in Freeport Bahamas I had to do the next best ...
2008 Chevrolet Silverado 1500 WT 4.3L Air bag VIN: 1GCEC14X18
Finally out of my hair! Took truck back to dealer, they tried to re-flash, and couldn't. They then told me the new cluster was bad, ordered it up and installed it. They didn't charge me anything extra and the customer is happy. I'm just disappointed the wh...
1988 Pontiac Fiero Sport 2.8L Poor Fuel Economy
My friend tried all new sensors again and a prom update, so far no success, it still has the same symptoms. He is going to put it on the back burner for now. If he has any new progress, I will post it at a later date. Sorry about that, I wish I had better news...
2006 Pontiac Grand Prix 3.8L MIL Lamp on VIN: 2G2WP58256
Thanks for all the IATN help. We found [...] Fuel tank Pressure Sensor was defective. car is FIX we set all OBDII monitors and passed the smog test. Thanks. Trouble codes: P0446 (Evap Control Vent Malfunction).
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