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JOHNBIGDOG

Grand prix shift

6 posts in this topic

97 GP 188000.

when I have the cruse on and decide to tromp it to get through some traffic my car seems to dump. (I'm not sure if its the trans trying to shift and "missing the shift" or if the motor is doing something funny. seems to chug somewhat) Sometimes it takes a while for it to go and kick down other times it does it ok. This happens at high and low speeds. But it dosn't do it when i don't use the cruse.

I know its not much to go on but it doesn't hurt to ask.

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Have you changed the fuel filter lately? When you kick it down can you tell if the tranny shifts down? What engine is in it?

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On this model I believe the ecm monitors cruise servo position, and if the cruise servo is sending the wrong position to the ecm it can limit cylinders to prevent over reving. I also see a tsb for a valve body problem with the tcc vavle sticking, and this could very well be the problem here.

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It does kick down. but its like it dosn't know what geat to choose so it like chugs the car. Its hard to describe.

Thanks though. I'll give er a look and ask some people @ my shop.

Thanks

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I've had this happen when the plug wires were bad. Engine kinda goes flat when you get into it.

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