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ENGINE IDLE SURGES AT START(ENOUGHF TO NOTICE) THEN SEEMS TO SETTLE DOWN. SLIGHT SURGE WHEN ACCELERATING?

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Hi! Used to work on one. The MAF (mass air flow) sensor may be faulty and you will need to replace it. The MAF has big contribution on engine performance specially on the idling. Once replaced you'll be good. Hope this helps and have a good one!

Posted on May 12, 2010

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This engine has a surge; AT 35-45mph,it's a bit more prounounced, not as bad, but still there at 60mph. As the tach goes up some, then down, so does the motor, up then back down, etc.Any ideas?


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Feb 09, 2016 | Cars & Trucks

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1999 oldsmobile intrigue stalls and surges under deceleration conditions only. Idles in neutral fine, accelerates fine, has no apparent miss. Can put in gear and travel great until under negative torque...


Do you have any codes? If so, what are they?
If not, this could be a mechanical problem with either the torque converter itself or some sort of stuck valve in the valve body inside the transmission.
I just replaced the valve body in my wife's 1999 Mercury Sable and it cleared up a number of problems she was having with shifting and torque converter lock up.
I hope this helps.
Good Luck!

Sep 21, 2013 | 1999 Oldsmobile Intrigue

1 Answer

Idle surging down a little when at stop lights in my 2000 mustang 3.8 never dies but seem's close.every 6 to 10 seconds no difference noticed while driving down the road. changed AIC valve for a c


probably cause by the a/c cutting in and out or running at idle . Fit an idle compensator to the system throttle or raise the idle speed 300rpm.

May 26, 2013 | 2000 Ford Mustang

1 Answer

When I start my 1999 honda CRV it surges to about


no the surge that high is not normal a normal cold start should go to around 1500 then settle slowly to 750 or so but this all depends on engine temp and ambient air temperature

Feb 07, 2010 | Honda CR-V Cars & Trucks

1 Answer

Surge in idle when brakes applied or after driving..


block off vacuum hose to brake booster and see if idle returns to normal if it does you need new brake booster has hole in diaphram internally some times slight hissing noise is evident in cab when pressing brake pedal to section where engine surges or idles high. also check for fuel leaks from hoses if you can smell fuel in engine bay while running and engine warm some leaks only leak while running and hot

Jun 14, 2009 | 1992 Nissan 300ZX

2 Answers

Rough idle / engine surges until power is applied


Sounds like a possible vaccume hose leak?

Feb 07, 2009 | 1997 Chevrolet Astro

1 Answer

Surging during acceleration


If it always, under acceleration, reguardles of what gear you are in, it is must likely, your ignition wires. If it's while coasting, past 45, vehicle in fourth gear, then it would be an isue with your trans. i.e. trans coming in and out of fourth gear or a torck converter clutch problem. Should have codes. If so what are they?

Jan 16, 2009 | 2001 Buick Century

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