Question about Chevrolet Silverado 1500

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1998gmcsierra15002wdtruck,305v-8,auto trans.275000miles,speed falls off even as increased throttle increases engine to4200rpm @60mph in 2nd gear then let off throttle and suddenly engine power "snaps"back to acceleration.also happens @15 mph.park truck ,drive later ,it is like nothing is wrong for 20 miles or more .at first it was very intermittent now frequency of occurence is increasing

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It's very possible that this is a problem with the throttle positioning sensor (TPS). Is it throwing any codes?

Posted on Aug 12, 2008

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Transmission problem?

Posted on Aug 12, 2008

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Hi,

Here is some possible reasons why your transmission is having those problems .

* The gear shift linkage is binding
* There is an internal problem in the transmission
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