04 Tahoe

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04 Tahoe

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Chevrolet Forum >> Chevy Trucks, Vans & SUV's >> Tahoe >> 04 Tahoe

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04 Tahoe - 8/27/2007 7:36:39 AM

hogball

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Joined: 8/27/2007
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04 Tahoe - Reduce engine power light comes on if I run A/C on high on hot day. This reduces the speed to max of 40mph. The coolent level is fine. After I let the truck set for a while then light goes off and normial speed is restored. I have disconnected negative to reset computer but that has not helped.

Post #: 1

RE: 04 Tahoe - 8/27/2007 7:51:19 AM

ZX1100F1

Posts: 2429
Joined: 8/1/2006
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Welcome: What does the coolant temperature gauge read when this occurs?

(in reply to hogball)

Post #: 2

RE: 04 Tahoe - 8/27/2007 8:05:56 AM

hogball

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Joined: 8/27/2007
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It climbs pretty high . But the temp. does not get high enough to over heat. Could it be that the T-Stat is not working properly?

(in reply to ZX1100F1)

Post #: 3

RE: 04 Tahoe - 8/27/2007 8:19:26 AM

ZX1100F1

Posts: 2429
Joined: 8/1/2006
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The "reduced power" message will come on before the engine over-temps to protect it from damage.
It sounds as though there is a problem with the cooling system of your Tahoe.

I would recommend checking the engine driven cooling fan clutch, or have a mechanic go completely through the cooling system.
It could be a faulty radiator cap, thermostat, debris or bent radiator or condenser fins, corrosion in the cooling system etc.

< Message edited by ZX1100F1 -- 8/27/2007 8:20:13 AM >

(in reply to hogball)

Post #: 4

RE: 04 Tahoe - 8/27/2007 8:24:58 AM

hogball

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Joined: 8/27/2007
Status: offline

I took it to a dealer and "they" told me there was nothing wrong. It ran fine for a couple of days then the trouble started again. I will check the fan clutch

(in reply to ZX1100F1)

Post #: 5