engine hesitation

laser_red_3.8 · February 24th, 2008, 03:55 PM

My car has a hesitation problem when the engine is warm or right after start up. Whenever I press on the gas, it'll hesitate slightly before accelerating. It doesnt matter how much gas I give it, and it seems to hesitate longer the higher the rpms are. It also doesnt have the torque and horsepower it does when the engine is cold. Also, when I press the gas right after start up, the rpms drop slightly before coming up like its getting too lean or rich. But after its been running for like 5 mins it seems like it has much more power when floor it. I have no idea what is causing it. I do have a check engine light on but its for the EGR valve I believe. I dont think that could be causing the problem.

GreenFaleen · February 24th, 2008, 03:58 PM

yeah your EGR valve could do it and rob power, get a new egr pressure sensor and see if that helps, also run an injector cleaner and check your air filter

laser_red_3.8 · February 24th, 2008, 04:05 PM

Oh, ok. I did get a new egr pressure sensor and that did nothing. The air filter was cleaned about a month ago but I cant hurt to clean it again. I will try to get a new egr valve I suppose and try some fuel injector cleaner. thanks.

Toph6888 · February 24th, 2008, 04:51 PM

iv had problems with my egr valve too...

How many miles do u have on ur car?

If its close to 100 k or so then u also should clean out the pipe going from the exhaust to the egr valve, and the pipe running from the egr valve to the intake. These get clogged with crap after a while...All you need to do is get some kind of engine cleaner, the guys at my store suggested gumout carb cleaner in an aerosal can that way u can direct the spray...for the egr to intake all you need is a toothbrush but for the pipe from teh exhaust to the egr u may have to get creative you need something that will be long but flexible with a brush on it...i would say something like a trombone cleaer or something might do the trick

Clean those out and you might be able to see a difference hope this helps

GreenFaleen · February 24th, 2008, 05:27 PM

Originally Posted by laser_red_3.8

Oh, ok. I did get a new egr pressure sensor and that did nothing. The air filter was cleaned about a month ago but I cant hurt to clean it again. I will try to get a new egr valve I suppose and try some fuel injector cleaner. thanks.

yeah it may be the valve itself there are about 3 parts with the EGR system that will throw the same code its a guess and test on what fixes it

laser_red_3.8 · February 24th, 2008, 06:19 PM

I have 75K miles on it. I will take a look at the egr tubes. Is there a way to test if the tubes are clogged? Thanks for the help.

SlideFox · February 24th, 2008, 08:29 PM

Will seafoam help??

GreenFaleen · February 24th, 2008, 08:37 PM

Originally Posted by SlideFox

Will seafoam help??

not a bad idea I use it as an injector cleaner

mustangjeff1997 · February 24th, 2008, 09:28 PM

mine sorta did the same thing. it ended up being the cam position sensor. if the egr valve isn't it, take a look at that

itschristorres8 · February 24th, 2008, 10:15 PM

Originally Posted by SlideFox

Will seafoam help??

+1 on the EGR!
seafoam will not really help this problem it may help with an idle but guys seafoam is not the answer to all problems.

SlideFox · February 25th, 2008, 09:17 AM

Originally Posted by itschristorres8

+1 on the EGR!
seafoam will not really help this problem it may help with an idle but guys seafoam is not the answer to all problems.

You mean I have to take it off my list of universal fix-its of:

1. Duck Tape
2. Super Glue
3. Ramen Noodles
4. JB Weld

??????

work_in_progress · February 25th, 2008, 03:49 PM

Originally Posted by SlideFox

You mean I have to take it off my list of universal fix-its of:

1. Duck Tape
2. Super Glue
3. Ramen Noodles
4. JB Weld

??????

NO YOU WILL ALL PERISH BEFORE THE AWESOME MIGHT OF SEAFOAM

ps don forget wd 40 and vice grips (dude broke a lambo shifter in C&D and used vice grips as a shift knob after that it got added to the list of universal fix-its)

SlideFox · February 25th, 2008, 04:06 PM

1. Duck Tape
2. Super Glue
3. Ramen Noodles
4. JB Weld
5. WD40
6. Vice Grips

Fixed!!!

February 24th, 2008, 03:55 PM	#1
laser_red_3.8 Newbie 2001 Mustang V6 Join Date: Sep 2007 Location: Houston, Texas Posts: 20 iTrader: 0 reviews	engine hesitation My car has a hesitation problem when the engine is warm or right after start up. Whenever I press on the gas, it'll hesitate slightly before accelerating. It doesnt matter how much gas I give it, and it seems to hesitate longer the higher the rpms are. It also doesnt have the torque and horsepower it does when the engine is cold. Also, when I press the gas right after start up, the rpms drop slightly before coming up like its getting too lean or rich. But after its been running for like 5 mins it seems like it has much more power when floor it. I have no idea what is causing it. I do have a check engine light on but its for the EGR valve I believe. I dont think that could be causing the problem. __________________ 2001 Laser Red V6 5-Speed -StangSuspension 1.4" Lowering Springs -GT Takeoffs -17" Mach 1 rims

February 24th, 2008, 03:58 PM	#2
GreenFaleen MM's Resident Ricer 2006 Scion tC 13.001@113 Join Date: Nov 2006 Location: Raleigh/Lenoir, NC Posts: 9,880 Blog Entries: 2 iTrader: 1 reviews	yeah your EGR valve could do it and rob power, get a new egr pressure sensor and see if that helps, also run an injector cleaner and check your air filter __________________ Scion Tc Turbo - 9psi 297whp 287wtq 2500lbs :p MM 4 Banger club: Senior Ricer NCMM #9 "Horsepower sells cars, torque wins races." -Carroll Shelby

February 24th, 2008, 04:05 PM	#3
laser_red_3.8 Newbie 2001 Mustang V6 Join Date: Sep 2007 Location: Houston, Texas Posts: 20 iTrader: 0 reviews	Oh, ok. I did get a new egr pressure sensor and that did nothing. The air filter was cleaned about a month ago but I cant hurt to clean it again. I will try to get a new egr valve I suppose and try some fuel injector cleaner. thanks. __________________ 2001 Laser Red V6 5-Speed -StangSuspension 1.4" Lowering Springs -GT Takeoffs -17" Mach 1 rims

February 24th, 2008, 06:19 PM	#6
laser_red_3.8 Newbie 2001 Mustang V6 Join Date: Sep 2007 Location: Houston, Texas Posts: 20 iTrader: 0 reviews	I have 75K miles on it. I will take a look at the egr tubes. Is there a way to test if the tubes are clogged? Thanks for the help. __________________ 2001 Laser Red V6 5-Speed -StangSuspension 1.4" Lowering Springs -GT Takeoffs -17" Mach 1 rims

February 24th, 2008, 08:29 PM	#7
SlideFox Regular 2000 Mustang V6 Join Date: Feb 2008 Location: Chandler, AZ Posts: 249 iTrader: 0 reviews	Will seafoam help?? __________________ '00 Silver Mustang V6 Coupe 18x9 Black Bullitt Front Wheels 18x10 Black Bullitt Rear Wheels Nitto NT-555 Tires Steeda Short Shifter BBK Intake Mach 1 Chin Spoiler w/ Grill Delete Projector Headlights

February 24th, 2008, 04:51 PM	#4
Toph6888 Regular 2000 Mustang V6 Join Date: Jan 2008 Location: Ohio Posts: 325 iTrader: 2 reviews	iv had problems with my egr valve too... How many miles do u have on ur car? If its close to 100 k or so then u also should clean out the pipe going from the exhaust to the egr valve, and the pipe running from the egr valve to the intake. These get clogged with crap after a while...All you need to do is get some kind of engine cleaner, the guys at my store suggested gumout carb cleaner in an aerosal can that way u can direct the spray...for the egr to intake all you need is a toothbrush but for the pipe from teh exhaust to the egr u may have to get creative you need something that will be long but flexible with a brush on it...i would say something like a trombone cleaer or something might do the trick Clean those out and you might be able to see a difference hope this helps

February 25th, 2008, 04:06 PM	#13
SlideFox Regular 2000 Mustang V6 Join Date: Feb 2008 Location: Chandler, AZ Posts: 249 iTrader: 0 reviews	1. Duck Tape 2. Super Glue 3. Ramen Noodles 4. JB Weld 5. WD40 6. Vice Grips Fixed!!! __________________ '00 Silver Mustang V6 Coupe 18x9 Black Bullitt Front Wheels 18x10 Black Bullitt Rear Wheels Nitto NT-555 Tires Steeda Short Shifter BBK Intake Mach 1 Chin Spoiler w/ Grill Delete Projector Headlights

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