I HAVE 160 DOHC,WHEN DRIVING AND I WANT BRAKE,REVS COME DOWN AND CAR STALLS?

1998 Nissan Sentra

Tiny

djtayer

March, 24, 2012 AT 1:44 PM

I have sentra 160 DOHC, when driving and I want brake, revs come down and car stalls?

FOUND 4250 RELATED QUESTIONS

8 Answers

Tiny

Wrenchtech

March, 24, 2012 AT 2:10 PM

First eliminate all vacuum or air leaks in the system. You may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.

Tiny

djtayer

March, 24, 2012 AT 2:21 PM

Thanks, how do I replace IAC?

Tiny

Wrenchtech

March, 24, 2012 AT 2:27 PM

Do the other stuff first and then worry about that.

Tiny

djtayer

March, 24, 2012 AT 7:57 PM

Hi, did what you told me to do, still the same. What now?

Tiny

Wrenchtech

March, 24, 2012 AT 9:49 PM

There are no specific instructions for changing the IAC. It's held in by a couple bolts.

Tiny

djtayer

March, 26, 2012 AT 5:51 PM

Thank you, it worked. Now there's a new problem fuel consumption seems to be a lot, idling is at 2000 rpms, is this normal, I changed the fuel filter, the carburator is okay.

Tiny

Wrenchtech

March, 26, 2012 AT 6:06 PM

Look for vacuum leaks

Tiny

djtayer

March, 26, 2012 AT 6:28 PM

Okay thanks, I know it's a vacuum leak, but where do I start?

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