Question about 2004 Chevrolet Impala

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We have a 2004 Impala, sometimes after the car is warmed up, it loses all power, especially going from a dead stop. It almost feels like the tranny is slipping, but it shifts through the gears fine. Any possible theories?

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DO TRANSMISSION FLUID FILTER CHANGED IF YOU AT 100000 MILES,WHICH IT IS DUE,CHANGE AIR FILTER AND FUEL FILTER, CLEAN FUEL INJECTORS SEE IF YOUR POWER IMPROVES.TRANSMISSION NEEDS A HEALTHY ENGINE BEFORE IT WILL SHIFT RIGHT AND SMOOTHLY.

Posted on Apr 07, 2011

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2004 impala jerks into first gear sometimes. steering wheel whines. I had transmission flushed. Is the tranny going out. I read many reviews that says it is Thanks


The 2 aren't connected to each other. Tranny flushes are NEVER good. Have it checked for codes. Code 1811 (EPC) VERY common in those trannys cause hard shifts.

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On every automatic transmission. you have whats called a tourque converter. If a flush and tranny fluid fill did not work before its not gonna work again. Your tourqe conver has gone bad or for some odd reason become detatched from the transmission housing. One thing that i know with all my experience you should never have your transmission flushed, especially more than once. Replacing your fluid is one thing but a tranny flush is just one thing auto manufactures should have never come up with. Also Check to see where the flush was done at. If it was done at a Jiffy lube, i doubt it was even done. BIG SCAM WITH JIFFY LUBE AND THERE TRANNY FLUSH SERVICE (check youtube for news reports). Now expect to pay a pretty penny for this becuase you have an automatic transmission. Normally on a manual, it would be your throwout bearing, but becuase the impala was never released with a manual tranny at least in that generation, your kinda stuck with taking it to a service shop. GO TO A GM SHOP. and ask them to fill the tranny with a special tranny fluit called DEXRON VI ONLY. Dexron is the only fluids that meets GM's standards.

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you cant flush a tranny in your drive way once you drop your pan yoou will lose most but tourque will still be full which will need a machine to totally drain it

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You might have it checked for codes too. Sometimes codes are stored that do not cause a CEL, but give clues as to what is failing.

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