I have a 2004 Chevy Silverado 1500 with a 4.3. Lack of power?

10

Asked by Jun 23, 2015 at 02:06 PM about the 2004 Chevrolet Silverado 1500 Ext Cab Long Bed 2WD

Question type: Maintenance & Repair

I just changed the intake manifold gasket because i had a vacuum leak. I checked for
other leaks and couldnt find any. What else could cause this? I have changed every
sensor on my engine and cleaned at of my plugs.

4 Answers

105

Maybe a catalytic converter problem. When they get plugged up they will cause loss of power.

10

There are no catalytic converters on the truck. I took them off before because they were clogged. I have a temp exhaust installed. Would my O2 sensors have anything to do with it? Plugged in or unplugged?

1 of 1 people found this helpful.
105

it could. they could be making your truck run to rich or to lean since there are no catalytic converters.

1 of 1 people found this helpful.
10

Okay thank you. I will get new catalytic converters installed and go from there.

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