This is an extension of a post I added to another thread. I am putting it here because I was getting no traction on the other thread, and because I think my problem is different from what I first assumed.
I was coming into a shopping center and as I slowed I thought I heard a uncharacteristic whine from the transmission. I completed my shopping and then came out to the car (2006, 4.4i), as I started driving, I thought I heard a grinding or bad bearing noise coming from the underside. When I got home, I put away the groceries and took another short drive, This time I could not be sure if I heard the noise or not (if it was there, it was very faint).
Two days later, I get all the four lights mentioned in the title. When the lights come on, the car seems to drive smoother than when I hear/feel the slight grinding. I figured I probably had the trifecta problem and that the extra light was some kind of bonus. When shutting down the car, I never heard the clicking noise, but then I also read that that was not always present when the TCA gear is giving trouble.
Anyway, I removed the TCA, stripped it down
* and found that there was very little wear on the gear (picture), certainly not enough to proclaim this as the problem.
So, today, I will put the TCA back in place with the new gear and go from there.
- Has anyone have any experience with all four lights mentioned?
- Does anyone have any advice as to where to look next in case the slight wear on the gear was not the problem?
- While the TCA is out, is there a way to do any test of the transfer case?
- Is there a test that can be performed on the sensor removed at he second wire harness connector?
After more investigation, it seems I should be looking at brake sensors. Any input would be appreciated.
*BTW, if you are trying to get the plate off, I fought with it for a long time, then put it into my oven for 15 minutes at 200 degrees - it then popped right off. Nothing seems to have suffered from the heat.