ok this problem has been on going with my car for the past year.....i used to thing that it was my auto tranmission but it looks like its not, cuz i just rebuilt the damn thing.

SO here is what the car does. when the car warms up and the RPM drops as it warms up. The car starts shaking sometimes even when i drive and come to complete stop the RPM drops slightly. if you count from zero on the taq slightly below the third line that's when i feel the shake. i have new Honda wires and plugs and i did the timing belt and water pump + brand new radiator and thermostat. This car has only 88,000 miles on it and its 98 4cy accord. What do you guys think the the problem. Also to mention that my temp Gauge is also acting up it keeps jumping up and down sometimes and sometimes it will get stuck to the bottom (Bellow freezing) while driving on the freeway to the point where i have to tap the dash and it goes back up.

List of problems:
1. Car shaking at ideal and complete stops when the car is warm only.
2. Temp gauge bouncing up and down and getting stuck sometimes.
3. The cars interior lights and the gauge cluster light will dim if i use my power windows.

What i think the solutions are
1. TPS sensor
2. Bad coolant sensor or guage
3. Bad ground ( have no clue how and where to check for grounds) or bad alternator.


Please help me and correct me if i'm wrong thank you so much for you time.