Hi. Im new here. I just bought a 2002 GT with 91,xxx miles
Build Date: 10.06.2002
Vehicle Line: Mustang
Body Style: Coupe
Version: GT
Engine: 4.6 SOHC EFI
Transmission: 4R70W (AODE) 4-Speed Auto Trans
Drive: LHD RWD
Axle Ratio: 3.27
I changed plugs (autolite plats), fuel filter, air filter, cleaned MAF, cleaned IAC, replaced EGR, fixed vacuum leak, changed oil and trans oil, and unplugged battery to reset ECU.
It has no CEL or pending codes according to my Actron scanner.
pre-tune up it ran 7.9 sec 0-60 with trac off
post-tune up it runs 7.6 sec 0-60 with trac off
my 2012 base 3.7 auto with 2.73s runs 6.9 sec 0-60 on the same stretch.
it feels really rough, loud, and restricted, but still has enough torque to squeal tires at launch and sometimes chirps shifting into second.
The idle is inconsistant and occasionally stumbles to an almost stall, especially when heat or a/c is on. It also sometimes lurches during acceleration and temporarily feels smoother and faster (feels great!), but always returns to the grumpy restricted feeling right afterward.
it also doesnt want to start sometimes... especially after i have been driving it hard. it will crank over fine, but just doesnt fire up. it always starts fine from a cold start.
The alternator seems fine... its runs normaly after I disconnect battery, even with lights and radio on.
it sounds and feels "grindy". no pinging, but sounds like it labors to pick up rpms, it feels "heavy". I was expecting it to rev up faster and decel faster then it does....
My wife and I raced my 2 stangs. She in the 3.7 and me in the GT. The results were just as the times I posted. the 3.7 was a couple car lengths ahead when she let off around 75 mph.
Heres some Actron readings at warm idle:
MIL STATUS OFF
ABSLT TPS% 19.2 (92.6 at WOT)
CALC LOAD% 26.2
MAF FLOW GR/SE 5.31
IAT F 51
IGN ADVANCE DE 28.0
FUEL PRESS KPAG 273
Is this car normal? I have zero experience with this car/engine and I dont know what to expect. I realize its not a race car in stock trim, but Ive read that the factory spec is supposed to be sub 6 sec 0-60, and this car is far from that mark. I just want it to run to its engineered potential, and I dont think it is. Any advise/help is appreciated. TIA Jeff
Build Date: 10.06.2002
Vehicle Line: Mustang
Body Style: Coupe
Version: GT
Engine: 4.6 SOHC EFI
Transmission: 4R70W (AODE) 4-Speed Auto Trans
Drive: LHD RWD
Axle Ratio: 3.27
I changed plugs (autolite plats), fuel filter, air filter, cleaned MAF, cleaned IAC, replaced EGR, fixed vacuum leak, changed oil and trans oil, and unplugged battery to reset ECU.
It has no CEL or pending codes according to my Actron scanner.
pre-tune up it ran 7.9 sec 0-60 with trac off
post-tune up it runs 7.6 sec 0-60 with trac off
my 2012 base 3.7 auto with 2.73s runs 6.9 sec 0-60 on the same stretch.
it feels really rough, loud, and restricted, but still has enough torque to squeal tires at launch and sometimes chirps shifting into second.
The idle is inconsistant and occasionally stumbles to an almost stall, especially when heat or a/c is on. It also sometimes lurches during acceleration and temporarily feels smoother and faster (feels great!), but always returns to the grumpy restricted feeling right afterward.
it also doesnt want to start sometimes... especially after i have been driving it hard. it will crank over fine, but just doesnt fire up. it always starts fine from a cold start.
The alternator seems fine... its runs normaly after I disconnect battery, even with lights and radio on.
it sounds and feels "grindy". no pinging, but sounds like it labors to pick up rpms, it feels "heavy". I was expecting it to rev up faster and decel faster then it does....
My wife and I raced my 2 stangs. She in the 3.7 and me in the GT. The results were just as the times I posted. the 3.7 was a couple car lengths ahead when she let off around 75 mph.
Heres some Actron readings at warm idle:
MIL STATUS OFF
ABSLT TPS% 19.2 (92.6 at WOT)
CALC LOAD% 26.2
MAF FLOW GR/SE 5.31
IAT F 51
IGN ADVANCE DE 28.0
FUEL PRESS KPAG 273
Is this car normal? I have zero experience with this car/engine and I dont know what to expect. I realize its not a race car in stock trim, but Ive read that the factory spec is supposed to be sub 6 sec 0-60, and this car is far from that mark. I just want it to run to its engineered potential, and I dont think it is. Any advise/help is appreciated. TIA Jeff