1998 Dodge Ram Speed limit

1998 DODGE RAM
143,000 MILES • V8 • 2WD • AUTOMATIC
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JMCKIDDY
  • MEMBER
  • 1 POST
My van will not exceed 65 mph, it's 5.2 liter engine. We've changes plugs, wires, belts, oil and all filters also we just had a transmission tune up. However, she still won't exceed 65 mph. I bought the van used and we're planning to go on a trip with our grandchildren in the near further. Does this car have a some kind of limit switch if so how do we get it fixed. Thank you for your help in this matter
Mar 11, 2010 at 11:24 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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CARADIODOC
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 34,308 POSTS
This is a typical symptom of a partially plugged catalytic converter. Some mechanics have a test kit for measuring exhaust back pressure. They can also connect a hand-held computer, called a scanner, to read sensor values during a test drive. That could provide some clues to the problem.

caradiodoc
Mar 11, 2010 at 10:41 PM
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