Still resisting the CAD elimination, I see.................
I did the CAD fix and I noticed it made the front driveshaft spinning and it wa vibe rating badly and I got less gas mileage so I decided to stick with the vacuum system
Too soon to say it affected the mileage. I've never noticed a difference. And, if the factory was gonna lose MPGs they never woulda done it .Any vibes indicate an issue with the shaft, not the fix.
Click on the link in my signature and do the ground refreshing, connector refreshing, and C101 cleaning. You just pointed yourself in the right direction.
Yes, perfectly. The CAD system on the front axle was a feeble attempt to increase the fuel mileage on the XJs. Didn't work for that and had it's own set of issues. Factory eliminated it in about 1991. There is NO downside to doing the mod, except the light. And, I have a sneaking suspicion you are of above average intelligence and are perfectly capable of using the lever as in indicator in the light's absence.
Since he mentioned the actuator and housing, I assumed he has a CAD, which was on the part time systems but not on SelecTrac.
And, if he had SelecTrac, he wouldn't have been able to turn the front driveshaft in 2WD.
Doubt you will find a regulation factory thermostat at the auto parts store. Part # 83501426 is the one you need.
Actually, 52028186 is thermostat only, with no gaskets, and about $8 cheaper. Same stat.