Question about 2005 Chevrolet Colorado

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2005 Chevy Colorado - The reduced power mode comes on with the engine light on every so often, it usually clears itself when I shut the vehicle off, sometimes it doesn't. I changed the spark plugs and cleaned the battery up. Why is this happening? How do I check error codes on this vehicle?

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You need to have the codes retrieved and see if you have a code for the throttle module or pedal position sensor, a common problem is the module on the throttle body, which requires throttle body replacement.

Posted on Apr 24, 2009


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Reduced power light came on right after abs fault light came on

Firstly, you will have to perform a jump start, using another vehicle or battery.

I suspect that your alternator may have failed, so please do the following:

1) With vehicle running, use a voltmeter across the battery terminals. If charging is lower than 13.5 volts, then you can replace the alternator.
2) If charging can go up to 14 volts when revving the engine slightly, then go to 3
3) With engine off, check voltage across battery terminals. If lower than 12.4 volts, and if alternator check was okay, then replace the vehicle battery and retry.

Nov 12, 2012 | 2005 Chevrolet Colorado Crew

3 Answers

What does reduced power mean on a 2005 chevy colorado

why does the reduced power light come on , then the truck stalls. If you pull over and shut down the engine and wait a 30 secounds the truck will restart and run fine until the next time you start the truck. The truck has 48k miles

Aug 07, 2010 | 2005 Chevrolet Colorado

2 Answers

Chevy colorado fault light reset

The only way to clear the check engine light is with a scan tool.Disconnecting battery will not clear codes.Hope this helps.Good luck.

Apr 08, 2010 | 2005 Chevrolet Colorado

1 Answer

I think there should be a recall on Chevy Colorado engines, I've done some research and quit a few people has had the same 05 shuts off or tries to stall when coming to a stop, the engine...

Unfortunatley recalls are only put on vehicles when safety is concerned.

The stalling may be corrected by something as simple as cleaning out the throttle body. Electronic throttles are very sensative and need to be cleaned out every 20k miles.

The "service engine soon" light could be contributing or could be the cause for the stalling. You will need to find out what the code is.

What timing components are going out? Usually timing components dont "start to go out". So please clarify.

Condensation on the dipstick is normal. How is the water in the oil being determined?

Taking your vehicle to the dealer for service will keep you informed of what is going on with your vehicle. They will let you know of maintenance items, problems they have inspected, and potential problems that may occur.

Jan 28, 2010 | 2005 Chevrolet Colorado

2 Answers


sounds like you have a faulty air flow meter.

Jul 24, 2009 | 2005 Chevrolet Colorado

4 Answers

Reduced power code comes up and my truck stalls.

I had the same problem, and the solution was cleaning the throttle body, it does need to be completely removed to be cleaned thoroughly. I just used some brake cleaner on a rag to clean off all the carbon deposits. A friend of mine who is a dealer tech had only seen this trouble code once, and this was the solution. So far, my light has not come back on and the truck is running alot better at idle.

Jun 22, 2009 | 2005 Chevrolet Colorado

1 Answer

Reduced Power, Emissions Light is on

when weather warms up a bit run engine at 3500rpm and leave it for about 10mins this should clear the cat out,if the cat runs cold it will clog up reducing the power of the engine

Jan 15, 2009 | 2005 Chevrolet Colorado

1 Answer

Engin light is on

the check engine light can come on for any number of reasons mostly emissions related problems. the first step is to identify the code responsible for the light. there are many auto parts stores that will scan the vehicle free of charge for you. i suggest that first.

Dec 08, 2008 | 2005 Chevrolet Colorado

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