2003 gmc envoy 4.2 has no power
2003 gmc envoy 4.2 has no power
i have 2003 gmc envoy 4.2 no power, it slows down to 20mph.
Re: 2003 gmc envoy 4.2
Could be a bad catalytic converter. When it goes out, or gets heavily clogged up, it can reduce power very much and it seems like it won't accelerate or get any speed up.
Other things that can cause this would be....a bad fuel pump, clogged fuel filter, clogged air filter, dirty fuel injectors, timing issues, etc.
I would recommend checking for any codes that have set in the computer and go from there.
Other things that can cause this would be....a bad fuel pump, clogged fuel filter, clogged air filter, dirty fuel injectors, timing issues, etc.
I would recommend checking for any codes that have set in the computer and go from there.
GM Dealer Technician For 18+ Years
In the automotive industry for 20+
In the automotive industry for 20+
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