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By soundquest · Posted
Our 2007 Acadia had a stroke basically and the car will not move now (although it starts but the idle is erratic with the RPM's fluttering). I can get into reverse and the car will actually move, but in Drive, the throttle does not respond and the car will only move an inch or two at the most. Gauge messages abound -- the usual suspects. Somewhere in the wiring, something has to have gone horribly awry -- either at the BCM (could be right at the harness plug), under the fuse block where all the wires terminate, or a failed ground (or even a bad BCM). In any case, with the number and type of codes I am getting, I am looking for some additional guidance as I know my issue cannot be unique but one of many that has afflicted other Acadias (and similar varieties). Here is the code list (and there are additional codes as well, but these are the big ones): -
If it is just due to low resistance, then I would add LED hyperflash resistors to the left and right brake/turn signal lights, and if that doesn't work, perhaps the parking iights as well. -
If you keep it, i would just add 4 ball joints, an idler arm and most likely pitman arm to you future list. My 95 s10 zr2 ate 5 sets of ball joints, 4 idler arms and 3 pitman arms in a 100k of use, a glaring weak spot even with the non zr2 variants. -
Thanks. I saw that also, but wondered if Rockauto just was not selling the factory trans cooler. So, I have looked at a bunch of suburban radiator installations one YouTube and none mention an external factory trans cooler. Evidently the max towing package cools both engine oil and trans fluid through a HD radiator. -
I’d be careful about treating any AFM/DFM disabler as a lifter-failure guarantee. It can change cylinder-deactivation behavior, but it is not a mechanical repair and it does not remove the collapsible lifters from the engine. The other big thing is year/platform. A 2021 truck, a 2023 truck, and a 2025 truck should not automatically be grouped together for plug-in fitment. Exact year, engine, transmission, and refresh status matter.
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