Question about 2003 Chevrolet Impala

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Transmission stalls when shifting

Transmission stalls when its shifting into another gear, once the engine is hot. If I come to a complete stop, and the engines hot, the transmission stalls once the speedometer,hits 20 mph and it takes off but slowly. My car is a 1998 Ford Taurus.

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Sounds like the tranny needs to be rebuilt. Like the pressure plate and the disk are worn

Posted on Jun 02, 2009

  • Jeremy Reddick
    Jeremy Reddick Jun 02, 2009

    Sounds like the tranny needs to be rebuilt. Like the pressure plate and the disk are worn

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Transmission automatic


is the OD lamp acting up> is the CEL lamp on, driving???????????

old car, most 96 have long since , given up the ghost.

stops in 1st gear?

some times. (common) the oil (ATF) gets hot (normal) and when hot

it is more thin, and when more thin, finds leaks inside better.

what can happen is pump pressure is marginal and hot fails.



and pressure inside drops and transmission fails to shift.

did you run the scanner to see if THE A/T has thrown DTC codes?



why not get the A/.T a full service, most are never done.

and will be full of junk inside due to zero service. (this full flush is good on cars every 50k, but if ignored for 300k , the flush makes it worse)

but do pull the codes first.

the FSM covers that.

It has full on car testing , read that too.

Does the A/T fail (hot) and stick in1st gear

(the stall test in the FSM pass?>)?



the stall test, is with all brakes hard set.

and you do a hot engine/trans , WOT, for 5 seconds max. (RTM)

RTM means read the manual, its documented 100% this.

WOT is wide open throttle (short time)



then you look at RPM (engine)

and see how high it goes, if too low, the engine is weak

if too high the transmission is slipping and will now burn up if driven



do not ignore slipping or doom happens faster.

the next test is the on car,. tranny test ports for pump pressure.

that too, is in the FSM for first checks)



The A/T is complex. read the book, or get help

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When car gets hot it stalls when you stop. It will then restart but when you shift into gear it will stall again.


same isuue your bands inside your transmission have went it will work when it is cool but when it warms up is that the bands are jumping inside the tranny my recomendation is to take it to the transmission shop

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if it feels like your driving a standard transmission ,and "you came to a stop light without pushing clutch in"
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