Questions tagged [gm]

General Motors Company, commonly known as GM, is an American multinational corporation headquartered in Detroit, Michigan, that designs, manufactures, markets and distributes vehicles and vehicle parts and sells financial services. General Motors produces vehicles in 37 countries under thirteen brands: Alpheon, Chevrolet, Buick, GMC, Cadillac, Holden, HSV, Opel, Vauxhall, Wuling, Baojun, Jie Fang, UzDaewoo.

Filter by
Sorted by
Tagged with
0
votes
0answers
21 views

I need the male end of a cable connector that mates with THIS female connector

I have a Jeep Wrangler in which I've had a 5.3L Chevy LS engine installed, along with the GM ECU, a custom radiator and a GM radiator fan (from a 2017 Camaro I believe). The radiator fan has this ...
2
votes
0answers
43 views

testing auto 4L60E transmission while not in vehicle

is it possible to test while not installed in vehicle my auto 4L60E transmission
2
votes
1answer
628 views

Can I spray paint a engine's heat shield?

While planning some tasks for "restoring" my engine bay, I noticed one of the things that significantly affect the way it looks is the heat shield. It's rusty, since the corrosion was probably much ...
0
votes
1answer
239 views

2005 Pontiac Grand Prix GT Radio Theftlock

Blew the bulb in my stock radio, picked up another radio from the junk yard, and of course there's the theftlock (I should've known). I've read about being able to get a code by holding down various ...
1
vote
0answers
319 views

Revs go up, but car doesn't increase in speed while shifting. Trouble accelerating

I have a 1.2L Corsa B automatic, and I'm having trouble accelerating. I can only get to 60 mph slowly on flat roads, and about 30-40 on a hill but 70-80 mph downhill. I can feel it hesitating when ...
2
votes
1answer
76 views

Resting a radiator on metal brackets

I have recently replaced the radiator in my 2006 Pontiac g6 GTP 3.9L. While installing the new unit I neglected to install the rubber feet between the rad and the frames lower bracket, which the rad ...
1
vote
0answers
49 views

Bought OBDII tool - System too rich

My 04 Isuzu Rodeo has had a too rich code for some time now. I definitely smell the fuel out of the exhaust. In the last 6 months I have had the following done to try to fix this issue: New spark ...
1
vote
0answers
31 views

Did a Century/W-Body/GM Issue Exist Due to Chafing Wires Under the Dash?

I am trying to find out if an issue is a common flaw. Sixth Generation Buick Century's (1997-2005) Maybe all W-Bodies, or even all GM's of the era, I am not sure. But lets focus on Sixth Gen ...
1
vote
0answers
47 views

GM Vortec 5.0 CSFI - Failure Symptons

Based upon my research, the CSFI systems used in GM's Vortec engines during the mid to later 90's are problematic. As such, it does not appear uncommon to convert these to MPFI system. I have a 96 ...
2
votes
0answers
343 views

GM 6l90 transmission swap

I have a 2012 Chevy Express van 2500 with a 4.8l motor and 6l90 transmission with 200k miles. I bought a used 6l90 with 77k miles from a junk yard, that came out of an identically van. Same year, 2500,...
3
votes
1answer
1k views

High O2 voltage paired with high LTFT reading

What is likely culprit when O2 pegs at .9 volts and stays there indicating engine is rich. Then as this continues for 15 - 30 seconds, the LTFT eventually climbs to +25% or more. Computer calculates ...
1
vote
1answer
103 views

2000 Pontiac Grand Prix Idles at a higher temp than normal

I've just changed my oil and originally put diesel oil into my 2000 Pontiac Grand Prix accidentally, but removed it before ever turning it on and put the correct oil in. Now 1000 miles later, it sits ...
1
vote
2answers
11k views

GM power steering fluid — what kind do I need?

I have a 2007 Pontiac G6 (3.5L V6) that needs power steering fluid. However, I do not know what type is compatible with my vehicle. My manual simply says: GM Power Steering Fluid (GM Part No. U.S....
4
votes
1answer
430 views

Where can I get a comprehensive list of GMLAN Symptom category codes?

GM and several other manufacturers have added additional information to the 5 digit codes. These are not “codes” but are “Symptom categories”. The DTC symptom is made up of an additional 2 digit ...
5
votes
1answer
633 views

Valve lifters hitting camshaft when hand cranking

I have a 2000 Chevrolet Malibu 3.1. I changed the head gaskets the intake manifolds and the valve stem seals. Before starting the engine and putting everything 100% back together , I wanted to make ...
1
vote
0answers
355 views

Possible Bad Pressure Control Sol. in my 4l30e?

I rebuild the 4l30e in my Isuzu Trooper recently. The transmission shifted great and everything seemed ok. Time went on with the trooper as my daily and everything continued well. I passed 1k miles ...
2
votes
0answers
182 views

Cadillac CTS “Traction Control Off” displayed after driving 15 mins

After driving 15 mins the "Traction Control Off" light is displayed on dashboard and radio displays "Service Brake Assist". All go away after engine is turned off for about 20 mins. It recently got ...
2
votes
0answers
868 views

Corsa C electric power steering ECU 12V power polarity

I need to know the power polarity of Corsa C Electric Power Steering ECU 12V power connector. I suppose the power is the right connector in following photo (it has 2 flat pins vertically aligned): If ...
5
votes
1answer
84 views

01 Grand Prix No Crank when it sits in the hot Sun

Strange issue with a 2001 Grand Prix (3.8L vin K) No crank when the car sits in the hot sun for a few hours, has nothing to do with a engine hot soak. All dash light seem to pilot, just no crank. If ...
4
votes
1answer
332 views

GM's “Quad 4” Engine

The Quad 4 was a 4-cylinder, 2.3 liter engine GM designed in the late 80's and produced 180-190 hp depending on the level of tune. Impressive numbers on paper when the 5.7 liter V8 engine in the ...
1
vote
2answers
4k views

Failure in A/C compressor due to flood?

I've changed my car (Brazilian GM Classic) oil and after the change the A/C stoped working. I've asked for the car dealearship I've changed the oil to check it up. The diagnostic was that the A/C ...
4
votes
1answer
83 views

What action to take when GM Goodwrench breaks something? [closed]

I'm just back from GM Goodwrench for an airbag recall. The part in question is as you see in the picture. It looks like a fresh break, and the repair required pealing the carpet partly back, but I ...
15
votes
3answers
12k views

Why does GM still insist on push rod engines?

GM continues to design and produce push rod (Over Head Valve or OHV) engines while most of their competitors have gone to over head cam (OHC) configurations for their performance engines. Is there a ...
5
votes
0answers
118 views

GM 4L60-E Rebuild Questions - Part 1

I am in the process of rebuilding my first 4L60-E (I've done a 4L30-E before) and I had a couple questions. 1st: In terms of the input drum pistons I know there are both aluminum and steel models, ...
2
votes
1answer
345 views

Transfer Case Options 4l60e

I am currently in the process of rebuilding a 4l60e which will go into a 4x4 go-kart. I am now in need of a transfer case that will bolt up. Are there any manually shifted (not dash button) transfer ...
8
votes
1answer
137 views

Why would headlights stop working after turning over

I have a 2006 Pontiac G6. When I walk up to the vehicle and unlock it, the headlights turn on. After I get into the vehicle and turn it over, I cannot turn the headlights back on. Fog beams and turn ...
9
votes
3answers
615 views

Magnetic Active Suspension or Magnetorheological Damper

GM developed magnetic dampers for the Corvette several years back. What is magnetic active suspension and how does it work? I understand there is a magnetic fluid in the shocks but how, deep down, ...
1
vote
1answer
2k views

What is the drive cycle for OBD-II equipped GM vehicles?

As the title states, what do I have to do to get through the drive cycle for OBD-II equipped GM vehicles?
3
votes
3answers
7k views

Live scan tool for OBD 1.5 GM transitional?

1995 S-10 Blazer 4.3L Vortec V6 (vin W) with Powertrain Control Module (PCM) 1995 was the OBD transitional year for GM. The PCM itself is OBDI, but the interface connector has the 16-pin D-style ...
3
votes
1answer
441 views

2006 Solstice - car won't turn over following engine replacement

I recently installed an engine (complete from oil pan to the valve cover) from a 2010 Malibu in my 2006 Solstice. (Replacing a blown engine.) The car will not crank / turn over. Symptoms include: My ...
4
votes
1answer
16k views

What is Opel/Vauxhall's TwinPort Technology?

Some Opel Engines come with something called TwinPort Technology. I guess that this increases power, as the original Z12XE (1.2) engine has 55kW, and the TwinPort (Z12XEP) version engine has 59kW of ...
1
vote
2answers
404 views

New breaker points not working

I'm trying to replace the breaker point on my 1980 Oldsmobile, trying to fix some spurious misfires and engine stalls. The car was converted to gasoline in the early nineties or late eighties, engine ...
1
vote
1answer
47 views

Will anti-Freeze leave behind residue?

I bought a used 93 3.1 GM long block engine with 19,633 miles in 2014 from a yard that I found on the internet. The engine was pulled in 1996 and stored by the yard. I did a title search/check to ...
4
votes
1answer
8k 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 ...
2
votes
1answer
1k 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
3answers
100 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 ...
2
votes
3answers
3k 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
3answers
69k 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 ...
9
votes
1answer
37k 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 ...
5
votes
1answer
62k 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 ...
1
vote
2answers
119 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 ...
3
votes
4answers
2k 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 ...
3
votes
2answers
2k 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 ...