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4
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1answer
3k views

Which Reluctor Wheel on LS Engines?

Around 2005 or 2006, GM started using a 58-tooth reluctor wheel, where before they used a 24-tooth wheel in the LSx based engines (LS1, LS2, LS3, etc.). This wheel is used as a way for the computer to ...
4
votes
1answer
61 views

Repair or replace frayed fuel injection wiring harness?

This is on a 2008 Chevy Impala, 3.5L V6, non-flexfuel. Recently got cylinder 1 misfire / ignition failure codes. An investigation revealed that mice had gotten into my garage, made themselves at ...
4
votes
1answer
460 views

Can I use an OBD2 Scan Tool on older GM vehicle?

I can get an adapter that connects my OBD2 scan tool to my 12 pin GM scan tool connection. But will the tool be able to read the codes and tell me anything useful? Or do I need to get a scan tool that ...
3
votes
4answers
814 views

Knocking in my engine during cold start / whistling when accelerating

My 2003 Pontiac Grand Am GT will spudder and the engine will shake occasionally on cold starts. Its not a consistent problem - not every time, but it seems to be growing worse. I can feel the engine ...
2
votes
2answers
467 views

Why did GM change the pressure rating of their coolant tank cap for existing vehicles?

GM has changed the part number for the radiator surge tank cap on vehicles that came from the factory with Dex-Cool. The new cap is 18 PSI (RC87 - part number 25713160), the old one for many vehicles ...
2
votes
3answers
84 views

How to tell if an 08 CTS has a limited-slip differential?

I'm looking at purchasing a 2008 CTS RWD. From what I could gather from various forums, it sounds like a limited-slip was only included if you purchased the "summer performance tires" package. I ...
2
votes
1answer
7k views

Low beam headlights out, High beam working

The patient is a 1996 Chevrolet Caprice with dual-filament bulbs. Both filaments in both bulbs light up in high beam mode, but no filament on either bulb lights up in low beam mode. What could be ...
2
votes
1answer
29 views

2002 Impala 3.8L V6 thermostat gauge starts below cold then creeps toward red

My 2002 Impala 3.8 has been running great. However, this summer the thermostat gauge stopped reading temperature right. To the point it wouldn't move even after it had been running for hours. It would ...
1
vote
2answers
62 views

2003 Chevy Corvette actual mileage

A decade ago, a friend showed me how if one shuts down the electrical features of the dash of a 2003 Chevy Corvette, by removing a specific fuse, the car is drivable but the odometer no longer records ...
1
vote
2answers
30 views

Noisy stereo when engine running

I have a 2009 Holden Barina. I turned the car on to "Accessories" and the radio was working fine. I turned the car on, and now there is a noise coming from the speakers and no music. The same thing ...