car jerks when im crusing at low speeds not trans

E

eugenewilhelmjr

New Member

Nov 24, 2011

19

0

1

georgia

Nov 28, 2011

#1

• Nov 28, 2011

• #1

why is my mustang gerking when im driving it

 

S

Slimpickens91

New Member

Nov 22, 2011

11

0

2

Nov 28, 2011

#2

• Nov 28, 2011

• #2

Wat set up do u have? If u have bigger intake and heads make sure u get the right injectors, maf and throttle body

 

S

Slimpickens91

New Member

Nov 22, 2011

11

0

2

Nov 28, 2011

#3

• Nov 28, 2011

• #3

Wat set up u got? Do u have heads and intake

 

wythors

Get off my lawn!!!

Founding Member

May 17, 2000

2,277

35

69

C Addle

Nov 29, 2011

#4

• Nov 29, 2011

• #4

Gerking? Isn't that a sweet pickle?

 

fiveohwblow

Official Member

15 Year Member

Jul 21, 2005

2,169

145

155

Nov 29, 2011

#5

• Nov 29, 2011

• #5

y is this thred dumed frum tha start

 

jsw81

5 Year Member

Mar 19, 2007

307

71

68

IA

Nov 29, 2011

#6

• Nov 29, 2011

• #6

wythors said:

Gerking? Isn't that a sweet pickle?

Click to expand...

^^^came in here to post exactly this!

 

ID89GT

10 Year Member

May 26, 2008

1,659

18

49

Spokane Valley, WA

Nov 29, 2011

#7

• Nov 29, 2011

• #7

Haha

 

Gearbanger 101

Straight Outta Locash

20+ Year Stangneter

Aug 10, 2002

9,457

1,377

234

Ontario, Canada

Nov 30, 2011

#8

• Nov 30, 2011

• #8

More details please. Jerking under load? While coasting? Under light throttle? Under heavy throttle? At any particular RPM? Details please.

 

Adams91LX

Active Member

Dec 9, 2003

689

12

29

Plano, TX

Nov 30, 2011

#9

• Nov 30, 2011

• #9

like side to side maybe?

suspension or drivetrain problem?

 

Bryan83taco

Active Member

Feb 4, 2003

554

40

39

SF Bay

Nov 30, 2011

#10

• Nov 30, 2011

• #10

Jesus, why is it so hard to type in English here? I am the farthest thing from an English major but come on people.

wat? u?

Long day, rant over.

 

C

CoupeRon

Member

Sep 10, 2011

39

0

6

Nov 30, 2011

#11

• Nov 30, 2011

• #11

In an attempt to salvage this thread...I too have a bucking action occur at 1,500-2000 rpm when driving around the block in 1st and 2nd gear. 3,000 rms and higher don't seem to produce any issues. Car is supposed to have 373s an it has an older TKO 3550 trans with fairly new clutch....any ideas folks?

 

foxbodymike87

Active Member

Jul 12, 2011

739

35

39

Nov 30, 2011

#12

• Nov 30, 2011

• #12

CoupeRon said:

In an attempt to salvage this thread...I too have a bucking action occur at 1,500-2000 rpm when driving around the block in 1st and 2nd gear. 3,000 rms and higher don't seem to produce any issues. Car is supposed to have 373s an it has an older TKO 3550 trans with fairly new clutch....any ideas folks?

Click to expand...

same with me in 1st gear at low rpm. It bucks so bad the tires screech. and mines all stock

 

Gearbanger 101

Straight Outta Locash

20+ Year Stangneter

Aug 10, 2002

9,457

1,377

234

Ontario, Canada

Nov 30, 2011

#13

• Nov 30, 2011

• #13

CoupeRon said:

In an attempt to salvage this thread...I too have a bucking action occur at 1,500-2000 rpm when driving around the block in 1st and 2nd gear. 3,000 rms and higher don't seem to produce any issues. Car is supposed to have 373s an it has an older TKO 3550 trans with fairly new clutch....any ideas folks?

Click to expand...

9/10 times...any light throttle, low RPM bucking or jerking issue I had with any of the Mustangs I've owned was directly attributed to too much advance on the ignition timing. Try backing the distributor off a couple of degrees and see if retarding the timing a little helps. These car’s will technically run at 14-15 degree’s with high test, but I’ve found the best drivability to be around 12 or so.

 

E

eugenewilhelmjr

New Member

Nov 24, 2011

19

0

1

georgia

Dec 4, 2011

#14

• Dec 4, 2011

• #14

ID89GT said:

Haha

Click to expand...

haha f u

 

E

eugenewilhelmjr

New Member

Nov 24, 2011

19

0

1

georgia

Dec 4, 2011

#15

• Dec 4, 2011

• #15

Gearbanger 101 said:

More details please. Jerking under load? While coasting? Under light throttle? Under heavy throttle? At any particular RPM? Details please.

Click to expand...

under light throttle

 

Blown88GT

Founding Member

Nov 13, 1999

2,283

524

164

Palm Beach Gardens, FL

Dec 4, 2011

#16

• Dec 4, 2011

• #16

PIP or TFI. Will know for sure when new dizzy arrives.

 

E

eugenewilhelmjr

New Member

Nov 24, 2011

19

0

1

georgia

Dec 4, 2011

#17

• Dec 4, 2011

• #17

I have an 93 347 stroker motor
gt40x heads
trixflow R intake
comp cam
bbk long tube headers
30lbs injectors
crane ignition high fire
have matching maf 75 mm trottle body
new wiring harness painless

 

2000xp8

SN Certified Technician

Aug 8, 2003

8,026

1,617

194

NJ

Dec 4, 2011

#18

• Dec 4, 2011

• #18

It's more than likely ignition related. Start by checking your wires/cap/rotor.
Don't assume because they look good, they are good.
Bypass the aftermarket ignition module too for the time being.

 

Gearbanger 101

Straight Outta Locash

20+ Year Stangneter

Aug 10, 2002

9,457

1,377

234

Ontario, Canada

Dec 4, 2011

#19

• Dec 4, 2011

• #19

eugenewilhelmjr said:

under light throttle

Click to expand...

Try the advice I gave to CoupeRon above.

Also...if the car hasn't had a tuned up in a while...it might be a good idea to perform one. Plugs, wires, cap/rotor, PCV valve, fuel and air filters. Try the free stuff first, but don't discount the importance of a fresh tune up.

 

Blown88GT

Founding Member

Nov 13, 1999

2,283

524

164

Palm Beach Gardens, FL

Dec 5, 2011

#20

• Dec 5, 2011

• #20

Mine started doing that & finally got worse. Appears to be PIP but won't know for sure until backordered Motorcraft distributor arrives.