Please Help! High RPM stumble and....

ESwanny11 · February 18th, 2011, 09:35 AM

Ok so here is the issue. When the car is not warmed up and I step on the gas it stumbles almost as if I'm rev'd out. After the car warms up it only does it at higher RPM's (3500-5000) and I was wondering if this issue is causing me to blow seals and gaskets. I blew the rear intake seal, then the front one, and last night I blew the header gasket (2nd time it's happened). And I have to replace both exhaust donuts.

My MODS are in my sig.

Any help would be appreciated!

ESwanny11 · March 5th, 2011, 12:52 PM

anyone

93hatch · March 5th, 2011, 07:41 PM

yes the front of the intake and back of the intake can make the car run bad if you have the stock pcv system in the car

gripthenboost · March 6th, 2011, 06:04 AM

Originally Posted by 93hatch

yes the front of the intake and back of the intake can make the car run bad if you have the stock pcv system in the car

replace the pvc valve cant be more that $5.00 start with that

93hatch · March 6th, 2011, 12:27 PM

what Im saying is it can only be a vacuum leak if he still has the pcv system in the car, if he replaces the pcv and still has a leak there its still gona suck in air through the front and back of the intake into the pcv/upper

ESwanny11 · March 6th, 2011, 01:25 PM

gonna check for vacuum leaks today. I heard a trick of spraying carb cleaner to check.

February 18th, 2011, 09:35 AM	#1
ESwanny11 Newbie 1992 Mustang GT Join Date: Feb 2010 Location: DE Posts: 36 iTrader: 0 reviews	Please Help! High RPM stumble and.... Ok so here is the issue. When the car is not warmed up and I step on the gas it stumbles almost as if I'm rev'd out. After the car warms up it only does it at higher RPM's (3500-5000) and I was wondering if this issue is causing me to blow seals and gaskets. I blew the rear intake seal, then the front one, and last night I blew the header gasket (2nd time it's happened). And I have to replace both exhaust donuts. My MODS are in my sig. Any help would be appreciated! __________________ 3.73's, GT40P Heads, GT40 upper and lower, underdrive pulleys, TFS 1 cam, double roller timing set, SCT 4 Bank "Eric with a mustache and Mustang Eric?"

March 5th, 2011, 12:52 PM	#2
ESwanny11 Newbie 1992 Mustang GT Join Date: Feb 2010 Location: DE Posts: 36 iTrader: 0 reviews	anyone __________________ 3.73's, GT40P Heads, GT40 upper and lower, underdrive pulleys, TFS 1 cam, double roller timing set, SCT 4 Bank "Eric with a mustache and Mustang Eric?"

March 5th, 2011, 07:41 PM	#3
93hatch Banned 1992 Lx 11.39@119.24 Join Date: Jan 2008 Location: Az Posts: 11,644 iTrader: 0 reviews	yes the front of the intake and back of the intake can make the car run bad if you have the stock pcv system in the car __________________ [QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE]

March 6th, 2011, 12:27 PM	#5
93hatch Banned 1992 Lx 11.39@119.24 Join Date: Jan 2008 Location: Az Posts: 11,644 iTrader: 0 reviews	what Im saying is it can only be a vacuum leak if he still has the pcv system in the car, if he replaces the pcv and still has a leak there its still gona suck in air through the front and back of the intake into the pcv/upper __________________ [QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE]

March 6th, 2011, 01:25 PM	#6
ESwanny11 Newbie 1992 Mustang GT Join Date: Feb 2010 Location: DE Posts: 36 iTrader: 0 reviews	gonna check for vacuum leaks today. I heard a trick of spraying carb cleaner to check. __________________ 3.73's, GT40P Heads, GT40 upper and lower, underdrive pulleys, TFS 1 cam, double roller timing set, SCT 4 Bank "Eric with a mustache and Mustang Eric?"

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