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

[homienick]

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]

What year stang? Carb or Fuel Injection?

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

 

[raz54]

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.

 

[speedytang]

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]

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.