I couldn't get the truck to go over 40 miles an hour without going downhill. Uphill even worse.

Tiny
MOJOELRIZN
  • 2003 MAZDA B3000
  • 143,000 MILES

It's like the truck didn't want to change gears. Now my girlfriend had been to the shop before, and they said her rear differential was leaking and need service. For some reason I keep think slip dif which I thought was no big deal, but after reading some articles online I thought maybe this could be the problem. Do you think the rear dif would cause the truck to act like that, and if so how might I go about repairing it. We don't have much money, and this is the last vehicle I'm down to.

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Friday, September 28th, 2012 AT 1:02 PM

2 Replies

Tiny
ASEMASTER6371
  • EXPERT
  • 25,533 POSTS

No, I would look in another direction. Check the fuel pressure and the back pressure for the cat converter.

Roy

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Friday, September 28th, 2012 AT 1:41 PM
Tiny
KHLOW2008
  • EXPERT
  • 41,940 POSTS

Is the Malfunction Indicator Light indicating? More likely to be engine related rather than the rear differentials.

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Friday, September 28th, 2012 AT 2:27 PM

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