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2000 Pontiac Montana Hesitation or surging

Tiny
CARLIE31
  • MEMBER
  • 2000 PONTIAC MONTANA
  • 3.4L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 16,000 MILES
When I drive after about 10 mins it starts to loose power &the rpm gauge goes up and down sometimes it will die but start right up
Wednesday, September 3rd, 2014 AT 10:02 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
When the RPM gauge goes up and down, is the transmission slipping or does it only happen at an idle?
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Thursday, September 4th, 2014 AT 5:33 AM
Tiny
CARLIE31
  • MEMBER
  • 4 POSTS
It doesn't happen in idle at all it's while I'm driving
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Thursday, September 4th, 2014 AT 7:10 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Does it feel like the trans is slipping? Have you checked to make sure the catalytic converter isn't plugged? Have you checked fuel pump pressure?
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Thursday, September 4th, 2014 AT 8:32 AM
Tiny
CARLIE31
  • MEMBER
  • 4 POSTS
It doesn't feel like the transmission when it sometimes the lite will turn on or low oil pressure light will come on
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Thursday, September 4th, 2014 AT 11:31 AM
Tiny
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  • MECHANIC
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When you say light, are you referring to the check engine light? As far s the oil light, it may come on if the RPM's get really low.

If it is the check engine light, have you had the computer scanned for trouble codes?
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Thursday, September 4th, 2014 AT 6:05 PM
Tiny
CARLIE31
  • MEMBER
  • 4 POSTS
The check engine doesn't come the battery light does or the low oil pressure sometimes
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Thursday, September 4th, 2014 AT 6:21 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Okay, those come on if the RPM's get too low. Without the check engine light, it makes it a guessing game. It could be a MAF sensor, TPS sensor, IAC sensor, fuel pressure issue and the list goes on.
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Thursday, September 4th, 2014 AT 6:39 PM

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