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About mikecoachusa

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  • Birthday 02/07/1961
  1. I need to replace the PROM in my 90 regal custom coupe with the 3800. where can i get a PROM? these are discontinued. Can i just get an ECM from a junkyard that is engine and year matching and plug and play??
  2. Believe this is the problem and solution. will install new TPS soon An intermittent chuggle or hesitation that can be felt during light acceleration or while cruising at highway speeds with no Check Engine light or no fault codes set may be caused by intermittent operation of the automatic transmission torque converter clutch (TCC). The problem is not the torque converter clutch or clutch solenoid, but a faulty input to the powertrain control module computer from the engine's throttle position (TPS) sensor. The fix for this problem is to replace the TPS sensor.
  3. put in a brand new MAF,,,,, no change; so frustrating!
  4. replaced ICM, ECM, plugs, wires and coils. problem still exists
  5. no white smoke.....what could be wrong with the crank sensors??
  6. coil paks were replaced 2 months ago, but the old ones were fine. i will try them again. ECM is new
  7. no it will happen periodically, especially under load like pulling a long grade at hwy speed
  8. I have a 1990 buick regal coupe, 45000 original miles, 3800 engine. at highway speeds it will suddenly jerk 2-4 times and then be fine. any suggestions??
  9. regal keeps throwing code 14 =14 coolant sensor high resistance or shorted...i have checked yellow wire from sensor to ECM and it is good, installed new sensor; checked before install, ECM is new; bench tested, new battery, despite all this i cannot solve the issue anyone have any ideas????? the black wire leading away from the sensor; is that a ground wire and where does it lead? please help
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