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

Tiny
MY GARAGE
  • MEMBER
  • 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 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 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
  • 6 POSTS
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
  • MECHANIC
  • 52,797 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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