why is my tahoe chugging?


why is my tahoe chugging?

Unread post by bbundy » Mon May 24, 2010 12:54 pm

Recently our 99 Tahoe started to have a slight chug or jerk to it. Now it does it really badly. The rpms never move when it does this and the check engine light finally came on. Do you think its the trasmission or something with the gas. It also gets terrible gas mileage..


Terry uto

Re: why is my tahoe chugging?

Unread post by Terry uto » Mon May 24, 2010 10:23 pm

Getting the codes pulled form the computer is the key to diagnosing this problem.
A chug or jerking can just be a misfire. Nomally a misfire under accerleration is a bad spark plug wire, coil or spark plug.
But with the bad gas mileage, you may have a different problem. Get the codes scanned. Most of the large national parst store chains will do this for free.

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