Question about 1997 Chrysler Concorde
When the car is ready to change in to passing gear it starts bucking as if its trying to chage but cant. Could this be transmission filter and fluid problem? It only does this between 40 to 45 mph and the check engine light starts flashing. What do you suggest!!!
Really?! The check engine light is flashing because your engine is misfiring, skipping. Fix the misfire and it will stop jerking and bucking
Posted on Oct 18, 2012
Mine did this too, and after having it scanned at a garage, it turned out to be the speed sensor on the transmission. disconnecting the battery for a few hours might work, also. Drive car immediately after reconnecting battery, so the computer can re-learn the shifting pattern. Be sure to drive normally and let it shift through all gears, then go onto a highway and get it up over 60 MPH and punching it down now and then into passing gear. This may help, if none of the sensors are bad. If you try this and light goes out and it shifts ok for awile, then symtoms return, then you definately have a bad sensor on the tranny. There are several of them.
Posted on May 27, 2009
Computer firmware needs upgrade
Take your car to a Chrysler dealer shop and have them update the transmission program.As your tranny wears it loses it shift point and stutters between 40 - 45 mph looking for the right gear to change to..Had same problem in 94 Concorde and 94 T&C minivan.Reprogramming tranny fixed both cars.
Posted on Apr 07, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
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1. Start the engine when the engine coolant
temperature gauge needle points to C. Allow
the engine to idle until the gauge needle
points between the C and H (normal operating
2. Accelerate the vehicle to 55 MPH (88
km/h), then quickly release the accelerator
pedal completely and keep it released for at
least 6 seconds.
3. Quickly depress the accelerator pedal for a
moment, then drive the vehicle at a speed
of 53 to 60 MPH (86 to 96 km/h) for at least
4. Stop the vehicle.
5. Accelerate the vehicle to 35 MPH (55 km/h)
and maintain the speed for 20 seconds.
6. Repeat steps 4 through 5 at least 3 times.
7. Accelerate the vehicle to 55 MPH (88 km/h)
and maintain the speed for at least 3 minutes.
8. Stop the vehicle and turn the engine off.
9. Repeat steps 1 through 8 at least one more
If step 1 through 7 is interrupted, repeat the
preceding step. Any safe driving mode is acceptable
between steps. Do not stop the engine
until step 7 is completed. If you cannot or
do not want to perform the driving pattern, a
NISSAN dealer can conduct it for you.
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