CAN THE TRANNY OIL PUMP GO BAD? HOW DO I CHECK THE PRESSURE?

  • Tiny
  • MY GARAGE
  • 2001 Mercury Cougar
  • 163,000 miles

I HAVE CHANGED THE SOLENOID PACK AND TRANS RANGE SENSOR THE CAR SHIFTS INTO GEAR STRONG AND THEN THERES A LOST OF GEAR GIVE IT GAS AND GRABS AGAIN IM THINKING OIL PUMP.

Thursday, May 31st, 2012 AT 1:09 AM

3 Answers

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,502 posts

I bet it is the front clutch piston having a bad seal. There would be no engagement if the pump was bad.

Does it go into reverse?

Roy

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Thursday, May 31st, 2012 AT 1:14 AM
  • Tiny
  • MY GARAGE
  • Member

YES IT DOES BUT DOES THE SAME WHEN ITS COLD GRAB GOOD AS IT WARMS UP IT WILL GRAB AND LOSE.

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Thursday, May 31st, 2012 AT 1:20 AM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,502 posts

You have an internal failure that will rewuire removal and most likely an overhaul.

There are many ports on the trans to check various pressures. You need gauges and a manual to identify each tap point. It will most likely confirm internal failure.

Roy

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Thursday, May 31st, 2012 AT 1:29 AM

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