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2004 chevy express van 5.3L idle speed
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patches13
New User
Mar 20, 2016, 1:43 PM
Post #1 of 2
(1313 views)
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2004 chevy express van 5.3L idle speed
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I have a 2004 Chevy Express Van with a 5.3L engine with 85,000 miles that just started reving from idle to about 3,500 rpms for a second or two. This is a conversion van driven only by my wife. need help badly. Thanks for any advice.
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kev2
Veteran
Mar 20, 2016, 2:12 PM
Post #2 of 2
(1304 views)
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Re: 2004 chevy express van 5.3L idle speed
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step 1 scan for codes- yes even if the CEL is off.
Waiting for that info you could look for a vacuum leak after the TB (throttle body).
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