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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 31, 2013
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for GM
Help Request Answers
2002 Chevrolet Trailblazer LS 4.2L transfer cas VIN: 1GNDT13S02
trailblazer is back when selector switch is in 2wd encoder goes into neut but not all the time. Put scan tool on and watched data when moveing the switch switch says one thing encoder say's another IE: 2wd=neut, 4hi=a4wd but not all the time any thoughts
2005 Chevrolet Cobalt 2.2L water pump VIN: 1G1AK52F55
Hello IATN members; I have a Cobalt with the 2.2L Ecotech engine. Recently I put in a water pump and radiator which were leaking coolant. Both parts are aftermarket. After completing the repairs, the water pump is now whining. I do not know if these require a ...
2005 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: 1G1AL54F05
I've got a head scratcher here that is starting to try our patience a bit. Back in Oct we serviced this vehicle for a B1S1 02 sensor switching failure. After some quick testing we replaced the primary 02 sensor w/ a new unit and cleared dtc to ship it. About a... Trouble codes: P0113
2005 Chevrolet Impala LS 3.8L 2-3 shift VIN: 2G1WH55K75
Intermittently has a lag in shift going between 28 - 40 mph. Feels like the vehicle went into neutral for a bit. Other shifts are okay. Down shifts appear normal. Fluid level okay, but has slight smell in fluid. Trying to get a jump start on diagnosing this. A...
2006 Chevrolet Impala LS 3.5L Heater VIN: 2G1WB58K96
Hello friends. This car heats very well off idle. The engine is reaching normal temp. I have been through the coolant fill procedure that instructs to open system cap, remove heater hose from coolant pipe , fill pipe, raise hose & fill w/funnel, connect hose, ...
2007 Chevrolet Tahoe LTZ 5.3L Misfire, Poor Fuel Economy, MIL Lamp on, Limp Mode VIN: 1GNFC13017
Customer drove the vehicle here in limp mode with check engine light and stabilitrak message on. We checked fuse 13 because the customer just had it replaced at Jiffy Lube. Fuse 13 was blown, we replaced. We had codes for injectors 2,4,6,8 we have cleared and ... Trouble codes: P0202 (Cylinder 2 Injector Circuit Fault), P0204 (Cylinder 4 Injector Circuit Fault), P0206 (Cylinder 6 Injector Circuit Fault), P0208 (Cylinder 8 Injector Circuit Fault), P0300 (Random Cylinder Misfire)
2011 Chevrolet Cruze LT 1.4L water pump VIN: 1G1PH5S93B
Thanks up front for any help, I do not have any labor times for this 2011 Cruze w/1.4L turbo. Does anyone know how long it takes to change the water pump? Does not look to difficult, but?? Are there any issues with pumps on these things, 60,000 & 2 years is no...
2003 Oldsmobile Bravada 4.2L Crank no start VIN: 1GHDT13S73
I'm sending to dealership to have camshaft solenoid/pcm reflashed for tsb's for codes i have a tech 2 and the test all pass for the solenoid and voltage test customer states that twice they have had a crank but no start condition which i have not seen/witnesse... Trouble codes: P0013 (Camshaft solenoid), P0014 (camshaft solenoid)
2004 Pontiac Grand Prix GT1 3.8L plastic elbos VIN: 2G2WP52204
Original elbos were dry rotted and crumbled. Replacement aftermarket came back months later blown apart or just missimg except for o ring and end plastic. I am going to use oe this time any Ideas.Aready put 3rd set of elbos in so I can run vechicle ,dont want ...
1997 Saturn SL1 1.9L turn signal VIN: 1G8ZH5284V
I sure hope someone can guide me here. This saturn belongs to the boss, and i get stuck trying to figure out why the turn signal fuse pops as soon as the key is turned. I'm not very good at finding shorts in the wiring harness, but I THINK this is what is happ...
2003 Saturn Vue 3.0L Mechanical VIN: 5GZCZ53B63
Please help 3.0 timing belt first timer. Replacing timing belt water pump and tensioner and pulleys and was reading the procedure and wanted to get some help from those who have done many of these because the procedure seemed a little strange. I will be using ...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Cadillac DeVille Concours 4.6L Blower motor VIN: 1G6KF5493V
well when i got in this morning first thing i did was run the vehicle.prestro-blower works.did'nt no it had to be running.thanx juan.also read some archive post as well and that stuck out.did'nt have any codes,and i had a ground control on the center wire in ...
2003 Cadillac CTS 3.2L no drive VIN: 1G6DM57N83
Thank you for all of the replies. As I had suspected, this transmission is like 99% of electronically controlled units in that even with the transmission harness disconnected, it should still have reverse and 1 forward gear. This one has no forward or revers...
1964 Chevrolet Corvette 5.3L shifter VIN: 40867S1170
Hi guys, thank you all for your input as I said the problem was related to the shifter only. I checked the alignment of the levers and they were all lined up properly, so I ended up removing the shifter all together and took it apart and I found a screw that f...
2007 Chevrolet Cobalt LT 2.2L monitors VIN: 1G1AL55F37
Sent cust. to local dealer for possible puter replacement. Dealer said there was nothing wrong. Cust. called and agreed to come by next day so I could verify no repairs needed. Hooked up scanner and again no monitors ready after 1 day of driving, showed cust. ...
2007 Chevrolet Express 3500 6.0L Oil Pressure VIN: 1GCHG35U77
Many, many thanks to all who responded. You were dead on, installed a new pick-up tube and seal and all is well. IATN strikes again. Again, many thanks and God Bless!
1993 Geo Metro LSi 1.0L Electronic VIN: JG1MR3366P
Thank you for the help, most said that it was the TCM which I have also narrowed it down too! Have not found a TCM yet but possible have one coming. Will repost when I get it! Thanks Steve
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