HELP! changed spark plugs and wires, now it's shaking and doesn't accelerate much.

H

homienick

New Member

Jun 25, 2007

1

0

0

Jun 25, 2007

#1

• Jun 25, 2007

• #1

My father tonight changed my spark plugs and wires. My car was running fine before we did this. After he finished, I started the car and it sounded a little weird, i backed out and started driving, I can push down over 50% on my pedal and the car BARELY accelerates, I could floor it and watch my rpm's shoot up to 4 or 5 but my car would only accelerate a little, not to mention it shakes a lot now.

he said that maybe we accidently unplugged something, so he's out there right now looking. UGH

HELP PLEASE!!!!!

 

ChingonStang

Member

Sep 19, 2004

308

0

16

Dallas, Tejas

Jun 25, 2007

#2

• Jun 25, 2007

• #2

What year stang? Carb or Fuel Injection?

Check the wires and firing sequence and regap the plugs. You might have some bad wires.

 

raz54

New Member

Dec 21, 2006

205

0

0

Eureka Ca.

Jun 26, 2007

#3

• Jun 26, 2007

• #3

I agree about bad wires. I had 2 out of 6 wires that were bad and they were new and not cheapies either (mid grade). Spend the extra bucks and get some MSD wires.

 

S

speedytang

Founding Member

Jul 28, 1999

765

1

17

Marengo,Ohio,US

Jun 26, 2007

#4

• Jun 26, 2007

• #4

Sounds like wrong firing order or cross firing because wires are not routed correctly. I am sure you have taken pictures of your car to show the masses. Use those pictures to get how the wires should be routed.

 

Lsredy2kstang

Look, I'm special, dammit

Nov 29, 1999

2,543

5

0

Woodstcock, Georgia

Jun 27, 2007

#5

• Jun 27, 2007

• #5

Specifically check your plug 5 and 6 to make sure they are not wrong at the coil pack.

I have done mine so many times and still get them crossed over for some reason.

Is the car backfiring? That is also a tell all sign that it is crossed up and firing when it is not supposed to be.

Also, anyone with MSD wires, I am sending mine back due to them being poorly made and pulling one boot off, burning another.

I picked up a set of www.performancedistributors.com and they are awesome. 10mm, heavy and look REAL nice.