NoPistons -Mazda Rx7 & Rx8 Rotary Forum - Help, Engine Revs Up And Down

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mesallem

04-11-2005 10:34 PM

hello, i have successfully fixed the 1987 rx7, now when i drive and hit about 5000 rpms, the engine seems to rev back and forth by itself making the car jerk, what is my problem, also, i think i may have an exhaust leak, how do i check and fix it?

BlownSE

04-12-2005 02:40 AM

[quote name='mesallem' date='Apr 11 2005, 07:34 PM']hello, i have successfully fixed the 1987 rx7, now when i drive and hit about 5000 rpms, the engine seems to rev back and forth by itself making the car jerk, what is my problem, also, i think i may have an exhaust leak, how do i check and fix it?

[snapback]698569[/snapback]

[/quote]

Vac leak or Coolant temp sensor!

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