Revving

brandon444 · April 13th, 2011, 11:39 PM

You know when you rev a engine and then when it falls back down to idle and some cars rattle or stumble when they come back down??

What exactly is this?
Whats making that noise?
Is it bad on the engine?

MeMz · April 14th, 2011, 12:23 PM

Something is loose. Or Exhaust leak.

oldfox · April 14th, 2011, 12:46 PM

Man that's old school carburetor set up that had that problem.
The carburetor would shut to quick and cause a stumble or stall the cure for that was a part called a dash pod. A small diaphragm that caught the throttle and closed the last 1/16 slower.

and on the older cars the rattel was a bad spring on the exhaust flapper. you needed that to push exhaust back through the intake and out the other side to heat the engine and help the choke spring work when running cold.

brandon444 · April 14th, 2011, 01:07 PM

Its an efi

MeMz · April 14th, 2011, 01:31 PM

Whens the last time you cleaned your air filter?

oldfox · April 14th, 2011, 02:12 PM

Originally Posted by brandon444

its an efi

opps my bad

brandon444 · April 15th, 2011, 01:16 AM

Originally Posted by MeMz

Whens the last time you cleaned your air filter?

ironically yesterday

how would that cause it?

MeMz · April 15th, 2011, 11:45 AM

It may studder from in-sufficient air flow, kinda like choking and not being able to breath.
I'm not really sure what else it could be. Maybe a video would help me if I heard the sound, but I'm no technician so sorry I couldn't help much.

April 13th, 2011, 11:39 PM	#1
brandon444 Regular 91 Mustang LX 5.0 Join Date: Jan 2011 Location: Haubstadt, IN Posts: 470 iTrader: 0 reviews	Revving You know when you rev a engine and then when it falls back down to idle and some cars rattle or stumble when they come back down?? What exactly is this? Whats making that noise? Is it bad on the engine?

Threads Similar to: Revving
Thread	Thread Starter	Forum	Replies	Last Post
Problem when revving my car	GTfrod	2011+	4	March 20th, 2011 05:39 PM
Revving up	97Roush	96-98	6	March 22nd, 2010 01:53 AM
revving technique	onederful100	2005 - 2010	16	July 15th, 2009 11:14 PM
high revving 5.0	EscortSportage	5.0 Mustangs	39	April 25th, 2009 07:22 PM

April 14th, 2011, 12:46 PM	#3
oldfox Regular Join Date: Dec 2009 Posts: 71 iTrader: 0 reviews	Man that's old school carburetor set up that had that problem. The carburetor would shut to quick and cause a stumble or stall the cure for that was a part called a dash pod. A small diaphragm that caught the throttle and closed the last 1/16 slower. and on the older cars the rattel was a bad spring on the exhaust flapper. you needed that to push exhaust back through the intake and out the other side to heat the engine and help the choke spring work when running cold.

April 14th, 2011, 01:07 PM	#4
brandon444 Regular 91 Mustang LX 5.0 Join Date: Jan 2011 Location: Haubstadt, IN Posts: 470 iTrader: 0 reviews	Its an efi

Remove Advertisements Sponsored Links
Ford Mustang Forum Advertisement

All times are GMT -4. The time now is 03:36 PM.
Contact Us - Modded Mustangs : Ford Mustang Forums - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.