A faulty Idle Air Control valve (IAC) can cause the engine to surge and the Check Engine light (MIL) to come on. Replacing the IAC valve will repair this issue.
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Certain models in colder climates can exhibit a Check Engine light (MIL) when moisture freezes in the Manifold Absolute Pressure (MAP) sensor. Replacing the MAP sensor repairs this issue
On certain models the rear brake pads can cause a clunk when first braking due to the brake pad shims restricting pad slide. Replacing the read disc brake pad shims will repair this issue.
There is an issue where the transmission can have a torque converter problem, or the computer monitoring the torque converter can misinterpret the information, and in either case this can cause the Check Engine Light (MIL) to illuminate. The problem will need to be diagnosed and depending upon what is causing the issue, the transmission will have to be repaired or the computer replaced.
On some models the power seat can become inoperative when a cable becomes detached. Replacing the cable will fix this issue.
On certain models moisture can get into the rear wheel bearing and cause a noise. Replacing the rear wheel bearing is needed for this issue.
On certain models electrical noise from the cooling fan circuit can cause the brake light and indicator lights (dash lights) to come on momentarily. Replacing the alternator will fix this issue.