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slight increase in power


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micsmith
New User

Aug 13, 2010, 4:29 AM

Post #1 of 3 (1211 views)
slight increase in power Sign In

2004 mercury mountaineer
4.0 engine
50,000 miles (appoximate)

When my SUV gets to 20 mph there is a slight increase in speed for 1-3 seconds then it droppes back to normal. The RPMs jump to 3000 for this time and then falls back to 2000. I have had the transmission fluid cganges but it had no effect. Any Ideas on what is wrong?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 13, 2010, 5:08 AM

Post #2 of 3 (1207 views)
Re: slight increase in power Sign In

When you refer to speed increase, I assume you mean engine speed and not vehicle speed. It sounds like the transmission is having a problem changing gears. There's not a whole lot that you can do yourself here. I suggest you get a couple of opinions from transmission shops and see if they agree on the diagnosis.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



micsmith
New User

Aug 13, 2010, 5:10 AM

Post #3 of 3 (1201 views)
Re: slight increase in power Sign In

I will do that. Thank you for your help.






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