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1999 Mercury Cougar Sudden Loss Of Acceleration

Tiny
JUSIN001
  • MEMBER
  • 1999 MERCURY COUGAR
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 58,000 MILES
Hi There.

Problem as Follows:

The engine starts fine. I drive down the road, maybe 5 miles, maybe 25 miles and then I have a loss in acceleration which lasts throughout all the gears (automatic) until I turn the ignition off and on again.

there is no particulat time of day this occurs nor temperature that seems to be making this problem occur.

i spoke with a garage and they said the obvious MAS replacament, but also they said it may be the gearbox causing a problem and between £1500 & 3000 to fix?


The computer shows no fault codes

what do you fine people think about this problem. Thanks in advance.


Justin
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Monday, September 15th, 2008 AT 5:17 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be the MAF sensor also might want to check on the throttle position sensor/output shaft sensor-or the transmission itself.
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Monday, September 15th, 2008 AT 6:17 AM
Tiny
JUSIN001
  • MEMBER
  • 2 POSTS
Thanks for Reply.

Do you feel that the automatic gearbox could be at fault?
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Monday, September 15th, 2008 AT 7:26 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be if the band and clutches/valve body are no good its hard to say the transmission needs to be pressure tested
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Monday, September 15th, 2008 AT 1:59 PM

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