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Loss of power at high altitudes

Tiny
AJAY69
  • MEMBER
  • 1992 PONTIAC BONNEVILLE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 228,000 MILES
Why does my 1992 Pontiac Bonniville lose power at high altitudes?
Sunday, November 14th, 2010 AT 2:36 AM

2 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Suspect faulty MAP/Boost sensor. Any check engine light? Codes?
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Sunday, November 14th, 2010 AT 9:59 PM
Tiny
AJAY69
  • MEMBER
  • 4 POSTS
No check engine light. As I go higher in the mountains the power almost quits. One time it did.
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Monday, November 15th, 2010 AT 6:07 AM

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