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Recent content by PCweber

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    4T65e TCC lockup hack successful to fix fishbite / TCC shudder & question

    So I picked up a 2001 Bonneville with what felt like a misfire. Scanned it, no codes. Swapped out coil modules, plugs, wires, no change. So I thin noticed when it was cold it did not do it and then realized the TCC does not enable until warmed up. I then test drove and if I lightly pressed the...
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    04 fuel pump cross/ same to other GM models? (going to You Pull It yard today)

    the pump works fine, fuel gauge is screwed. Had this happen on a 98 GTP and got a pump for $25. The 04 body style is not very prevelant at the You Pull It yards yet. Was woundering if anyone knew of ther is teh same FP assembly used insay the Impala, Bonneville, Park Avenues, etc?
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    04 GTP aftermarker head unit install questions. (What harness, Bose inputs)

    Sorry if this is redundant, I searched for 3-4 hours last night and came up with nothing conclusive. (there are all kinds of threads for AUX port adds on the 6 disk with XM) I have an 04 GTP with the 6 disk and no XM, does have onstar. Want an Aux port. I bought a Scotche FM unit that wired...
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    AC always on, cant turn it off

    I bought an 04 GTP. The AC lamps is always on no matter what. It is running as on cold you can feel AC cold air. Anyhow, Can the switch alone be serviced? And, is this a common issue? (Note; it will go off when I turn the fan to off)
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    Sunroof wiring diagram

    My daughter's 1998 GT sunroof has never worked. Had it for about a year and I never got around to looking at it last summer. Does anyone have a wiring diagram for the sunroof portion? It has never opened shut, etc. I wanted to confirm power before buying a new motor.
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    Random very high / fast idle speed...

    About every 3 times my daughter drives her 97 GT she says it idles at around 2500 RPMs. I saw it doing it today myself and checked the throttle plate was returning to the stop and it was. I changed the IAC with a know good one off my son's 98 GT a few weeks ago. Also swapped the TPS & MAF...
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    timing slipped. Interferance? can chain be repaced in car?

    Piced up a 1997 GTP for $200. Guy said they told him the timing chain slipped. It spins over like the plugs are out and backfires a bit. Do these engines have a chance of valves hitting the piston in this situation? I assume the chain can be replaced with enigine in car? Should I remove the SC...
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    Perpetual P0507 DTC. Replaced a lot of sensors...

    97 GT. Cannot shake this "High Idle" P0507 DTC. I replaced the IAC & MAF sensors. I also swapped the TPS with my sons Monte Carlo with a 3.8L engine that is not getting any codes. I do notice when cold sometimes it can Idle pretty high but then it seems to idle down to normal when warm. I have...
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    Engine wiring harness ground location?

    On my 97 GT I was getting a DTC code for the TPS. I replaced the TPS and still got the DTC right after clearing it. After posting about that another forum reader told me a few things to check and it if was not that confirm the black wire to the TPS was a good ground. Sure enough I found 3 ohms...
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    Still getting P0121 code after replacing TPS. Any ideas?

    1997 GT with 3.8L NA. Been getting a P0121 DTC code for months. Clear it and it comes back within a day. I replaced the TPS (throttle position sensor). Same results, still get the same exact DTC after 2-3 engine starts. Any ideas what else can cause this?
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    Diff. in SE, GT, and GTP fuel pumps?

    My son called from college Saturday and GTP would not start. I went and looked at it and it had no fuel pressure and cycling key could not hear the high pitch whine of pump running. Long story short a friend had a GP SE parts car I got a fuel pump out of on Labor Day and put it in and now GTP is...
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    What wears to cause the classic rear camber issue?

    We have 2 GP's and both have the "old VW" look from the rear with negative camber issues. Can anyone explain what wears or changes to cause this? (I know how to fix it with camber bolts or slotting)
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    VIN decode question for GTP cars

    Is there a specific letter in the VIN that specifies a supercharged engine?
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    Cant turn key off sometimes?

    The engine will shut off but some type of interlock is keeping it form going all the way to where the key will come out. The orange shifter indicator light in dash is still on and the battery drains so I cant leave the key in and just use the remote to lock it, etc. And ideas what to check?
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    What ther GM cars with same/ functional fuel sending/ pump units?

    We have 2 GRand Prix's. One had the common fuel gauge stuck on full 98% of the time issue and I put a new sending unit in it to fix. Now the other GP fuel gauge is acting up. It should not cost $280 to fix a fuel gauge when the issue is the simple sweep tabs that rub on the variable resistor for...
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