1991 Honda Accord

Tiny
CCLFINCH
  • MEMBER
  • 1991 HONDA ACCORD
  • 4 CYL
  • FWD
  • MANUAL
  • 190,000 MILES
Lately my tach is jumping all over the place, it usually rins at 2.5, but now jumps anywhere from 2 - 4. I had the alternator and battery replaced in Nov
Tuesday, January 29th, 2008 AT 8:43 PM

1 Reply

Tiny
BRUCE HUNT
  • MECHANIC
  • 3,754 POSTS
Does it continue to do this when you are depressing the accelerator? If not, the surging is it occuring when the engine is cold and warm? Possibilities include:

vac leak
vac hose problem
IAC dirty/defective
EGR valve
cracked or leaking intake manifold or gasket
air in the cooling system
low coolant in the cooling system
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Wednesday, January 30th, 2008 AT 4:52 PM

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