Problems with my buddy's 2000 Mustang GT 4.6 ...

NastyZ28 · March 11th, 2008, 07:57 PM

He has at least a 50-60% loss of power. We use to race and it would be pretty even, sometimes I would win, sometimes he would...but now, I'm stomping him by 12-13 cars...its awful...lol...he got beat by a Dodge Nitro the other day, and I felt embarassed for him...lmao...back to the car, it seems to run perfect, no engine misses, but it has a hard time taching up...Any ideas as of what's wrong with it, would be nice...thanx guys...

96GTRagTop · March 11th, 2008, 08:07 PM

tranni or rear end are on there way out seems to me......

check his fluids levels for possible leaks. When my camaro's rear leaked i couldt accel for shit.

edit: Does he have catylytic converters? The could be backed up and no pressure is escaping

NastyZ28 · March 11th, 2008, 11:19 PM

He doesnt have cats...and we just changed his gear about 6 months ago to a 3.73 and changed his tranny too...but he did blow a hole in his intake about 3 months ago, and after we had it replaced, it just doesnt perform at all...

silver99gt · March 12th, 2008, 11:05 AM

Check out the cats like ragtop said they could be plugged up

NastyZ28 · March 12th, 2008, 01:31 PM

I just posted on here that he doesnt have cats...awhile back though, we put turn-downs right out of his flows...but, I don't think it should make a difference...

Trick Tuners · March 14th, 2008, 11:01 AM

Check the compression.

WAR-PARTY · March 14th, 2008, 12:29 PM

but he did blow a hole in his intake about 3 months ago, and after we had it replaced, it just doesnt perform at all...

This is the root of the problem, re-check your work. Sounds like a fuel/air mix problem

stanglifemike · March 16th, 2008, 11:11 PM

A leak around the intake can rob serious power

r3dn3ck · March 26th, 2008, 12:14 PM

and spawn a HUGE lean condition which will eventually help blow the motor.

marcd · May 19th, 2008, 11:00 AM

i would take the intake off. put all rew gaskets in there and make sure it in 100% ok. a vac leak will kill your car

Lefty10 · May 23rd, 2008, 07:46 AM

+1. Recheck your manifold. New gaskets and I had to repleace the o-rings on the fuel injectors when I changed mine

March 11th, 2008, 07:57 PM	#1
NastyZ28 Newbie 1992 Camaro Z28 Join Date: Mar 2008 Location: West Virginia Posts: 9	Problems with my buddy's 2000 Mustang GT 4.6 ... He has at least a 50-60% loss of power. We use to race and it would be pretty even, sometimes I would win, sometimes he would...but now, I'm stomping him by 12-13 cars...its awful...lol...he got beat by a Dodge Nitro the other day, and I felt embarassed for him...lmao...back to the car, it seems to run perfect, no engine misses, but it has a hard time taching up...Any ideas as of what's wrong with it, would be nice...thanx guys...

March 11th, 2008, 11:19 PM	#3
NastyZ28 Newbie 1992 Camaro Z28 Join Date: Mar 2008 Location: West Virginia Posts: 9	He doesnt have cats...and we just changed his gear about 6 months ago to a 3.73 and changed his tranny too...but he did blow a hole in his intake about 3 months ago, and after we had it replaced, it just doesnt perform at all... Last edited by NastyZ28 : March 11th, 2008 at 11:20 PM. Reason: thankz for the reply too...

March 14th, 2008, 11:01 AM	#6
Trick Tuners Authorized Vendor KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 820	Check the compression. __________________ SCT Custom Tuning, JLT intakes, Aeroforce Interceptor OBDII gauges and PLX wideband products @ Trick Tuners email joe@tricktuners.com PM for super MM member deals!

March 14th, 2008, 12:29 PM	#7
WAR-PARTY Hardcore Enthusiast 2001 YUGO GT Join Date: Aug 2006 Location: GOAT LOCKER PENSACOLA FL Posts: 1,054	but he did blow a hole in his intake about 3 months ago, and after we had it replaced, it just doesnt perform at all... This is the root of the problem, re-check your work. Sounds like a fuel/air mix problem __________________ I don't care if you lick windows, take the special bus or occasionally pee on yourself.. You hang in there sunshine, you're special.

March 16th, 2008, 11:11 PM	#8
stanglifemike Hardcore Enthusiast 06 GT & 98 GT Join Date: Dec 2006 Location: Carrollton, GA Posts: 2,923	A leak around the intake can rob serious power __________________ 98 GT: Accufab, Steeda, BBk, Mac, FlowMaster, Moser, Ford Racing, American Racing, Nitto, Eibach, SCT 06 GT: JLT, SCT, FRPP/Borla, Pypes, Steeda, BamaChips

March 12th, 2008, 11:05 AM	#4
silver99gt Regular 1999 Mustang GT Join Date: Apr 2007 Location: Long Island, Kansas Posts: 237	Check out the cats like ragtop said they could be plugged up

March 12th, 2008, 01:31 PM	#5
NastyZ28 Newbie 1992 Camaro Z28 Join Date: Mar 2008 Location: West Virginia Posts: 9	I just posted on here that he doesnt have cats...awhile back though, we put turn-downs right out of his flows...but, I don't think it should make a difference...

March 26th, 2008, 12:14 PM	#9
r3dn3ck Newbie Join Date: Aug 2007 Posts: 47	and spawn a HUGE lean condition which will eventually help blow the motor.

May 19th, 2008, 11:00 AM	#10
marcd Regular 2000 mustang gt Join Date: Jun 2007 Location: new jersey Posts: 175	i would take the intake off. put all rew gaskets in there and make sure it in 100% ok. a vac leak will kill your car __________________ http://profile.myspace.com/index.cfm...iendid=8548250

May 23rd, 2008, 07:46 AM	#11
Lefty10 Regular 2001 Cobra Vert. Join Date: Jun 2007 Location: Mechanicsburg, Pennsylvania Posts: 171	+1. Recheck your manifold. New gaskets and I had to repleace the o-rings on the fuel injectors when I changed mine

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