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post #1 of (permalink) Old 09-26-2003, 09:31 AM
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Tracker TPS

ok, now for a long time my 89 tracker has had a bad loping idle. I finally got around to taking it in to get it fixed, and as expected they told me the problem was with the TPS.
Now, i'm wondering what exactly the throttle position sensor does, as they mechanic's way of fixing it, was simply to unhook it. I would have assumed it was put on there for a reason, but everything runs smooth now with it gone.

Can someone please tell me the reason for this? i'm wondering if it's something i should replace, or just be happy that things are running now?
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post #2 of (permalink) Old 09-26-2003, 11:02 AM
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Re: Tracker TPS

There are adjustments to be made to the TPS that correct the loping idle problem you described. I'll send you the adjustments from the FSM to your email.

It does require a digi voltmeter but isn't complicated.

But you have to provide an email address to me! Either add it to your profile or send me a PM with it...
Fastone_84401 is offline  
post #3 of (permalink) Old 09-26-2003, 11:12 AM
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Re: Tracker TPS

You had sent me the pages out of the FSM awhile ago, I just never got around to doing it. That's why i finally decided to just take it to the shop and get it done.

The thing i don't understand is why does everything run smoother now that it's disconnected, and if it's something that is needed, why would a GM garage just disconnect it and not replace it?
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post #4 of (permalink) Old 09-27-2003, 01:10 PM
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Re: Tracker TPS

I'd like to receive a copy of the FSM pages to check and adjust the TPS on my '96 Tracker. I sent you a private email.

Thanks !!
panewstoo is offline  
post #5 of (permalink) Old 09-29-2003, 10:10 AM
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Re: Tracker TPS

Well, I was wrong. I thought that the engine was running smoothly right now with TPS disconnected. I discovered last night that if I turn my headlights on, that my idle problem returns.
The reason i hadn't attempted what was in the FSM pages was that I didn't have the vaccuum tester to set the TPS to open or idle.
This little vehicle continues to baffle me. Never before would I have thought I could alter my rpm's by turning on my headlights.
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