my 2008 mazda tribute will not go over 50mph. why?
10

Asked by GuruYYMM Mar 28, 2017 at 05:35 PM about the 2008 Mazda Tribute s Sport 4WD

Question type: Maintenance & Repair

my 2008 mazda tribute will not go over 50 mph. it is not the transmission. what could it be?

5 Answers
223,905

Rowefast answered 7 years ago

It is possible the catalytic converter may be starting to get plugged. Would the rpm's of the engine only go so high winding out a gear? Have that checked at an exhaust shop.

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GuruYYMM answered 7 years ago

i had that checked out and was told the converter was not plugged.

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223,905

Rowefast answered 7 years ago

It is possible the fuel regulator would be bad, not able to create enough fuel pressure. Its not because of the transmission is it? RPM's of the engine stay the same when at 50 mph?

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GuruZJ8QR answered 6 years ago

Test/replace the DPFE ... differential pressure feedback EGR sensor...known issue or remove and clean maf and trottle body butterfly valve. .known issue, u may even have to replace entire valve body..cheap part about $70 us?

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