My car is having sensor problems

[Whiteyrabbit]

So I have a 2006 Mercury Mountaineer premiere with white trim. It has 140000 miles on it. It recently pulled a P0101 code and the AWD sensor came on. When I first start driving it wants to slightly lunge forward and then it drives fine until I drive uphill or I reach 50 to 60 mph and then it wants to skip gears and lunge. Sometimes the code lights come on and sometimes they don't. The lights are a wrench light and a car with wavy lines. I truly hope I don't need a super expensive transmission fix. Is it an easy fix? Also my AC unit doesn't have a high enough output to be sufficient enough to cool it down. Can I add the refrigerant myself or do I need a garage to help me do it? Thanks for any advice or tips.

 

[Rick]

P0101 is a code for the MAF. You can clean the element within the MAF with an electronic parts cleaner like this:

Amazon.com: CRC 05103-Case 5103 Quick Dry Electronic Cleaner, 11 oz, 12 Pack : Automotive

Buy CRC 05103-Case 5103 Quick Dry Electronic Cleaner, 11 oz, 12 Pack: Electrical Cleaners - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

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That may help, unless the unit is truly "bad".

 

[Rcflyer330]

You mcould also have abs problems. I have heard of the rear tone rings cracking and causing similar problems. But start with the maf sensor. The ac I would take it to a shop unless you know what you are doing.