Engine Hiccup?

Reply Subscribe

Thread Tools

Search this Thread

Feb 21, 2011 | 05:06 PM

czardali

Thread Starter

Instructor

Joined: Mar 2010

Posts: 219

Likes: 0

From: Texas

Engine Hiccup?

Today is the first day I've driven my car in weeks and after a 2 hour run around town I park my car and the engine does something I can best describe as a hiccup. The car rocked and the engine made a noise as if air was coming out from the carburetor. Does anyone have any idea what this may be?

Feb 21, 2011 | 05:22 PM

BHRIG

Racer

Joined: May 2007

Posts: 370

Likes: 0

From: Cherry Hill N.J.

"Run-on", timing might be too far advanced .

It could also be idle is too high or carbon build up.

Try lowering idle first...this is easiest.

Next would be, check timing , retard a few degrees and see if problem goes away.

Carbon build-up has many cures..carb adjustment ..change plugs.....fuel octane...and so on.....

Good luck

Feb 21, 2011 | 07:21 PM

croaker

Melting Slicks

Joined: May 2006

Posts: 2,369

Likes: 103

From: Centerville Louisiana

What type of gas you using? Low grade regular? if not that my money would be on your timing to advanced

Feb 21, 2011 | 09:43 PM

czardali

Thread Starter

Instructor

Joined: Mar 2010

Posts: 219

Likes: 0

From: Texas

im using low grade regular unleaded. I just used Sea Foam today to rid carbon build up. My car does idle really hard. How do i adjust it?

Feb 21, 2011 | 09:54 PM

DRIVESHAFT

Drifting

Joined: Aug 2005

Posts: 1,682

Likes: 3

From: League City TX

If your car has a rough idle (assuming thats what you mean by 'hard'), the idle screw may have been adjusted in an attempt to improve it.
Adjusting the throttle blades open too far is the easiest way to induce run on.
Figure out whats causing the rough idle, and you can possibly close the throttle a bit.

Last edited by DRIVESHAFT; Feb 21, 2011 at 09:57 PM.