car only firing on two cylinders

[kenneth]

im buying a car from a friend of mine and the car is only firing on 1 & 4 cylinders 2 & 3 dont even have fire coming from the coil even tho the coil has already been changed... any suggestions? thanks

 

[2GFWDbeast]

That issue usually is coil pack or power transistor or happen to have 2 bad spark plug wires

 

[kenneth]

they guy says he replaced the sensors and the 1 & 4 cylinders werent firing and the 2 & 3 were.. changed crank sensor an cam shaft sensor i believe

 

[spawn87]

swap out the plug wires with the ones that do work (unplug it completely and swap it so to not change the firing order.) and with the car on, unplug wire from valve cover if you c ark then its the wire. if you dont its the coil.

do one at a time.

its a process of elimination.

 

[kenneth]

ok ill have to wait until thursday when i acctually go buy the car im just trying to see if im buying something i shouldnt

 

[2GFWDbeast]

check the wires to the coil pack make sure there not cracked. But most likely when no spark in 2 cylinders power transistor burned out.

 

[kenneth]

ok ill try that ive seen an heard the car run an all i just dont know much about electrical stuff on dsm's

 

[B0oSteD95gsx]

+1 for power transistor

 

[dsmpat95]

If i was there you could use my power transistor, Hope the car goes good Wheaties.

 

[Maxter22]

It's the ignition module. I'm 100 percent sure because mine was doing that also.

 

[2GFWDbeast]

Just because that was your problem, doesnt mean its his. Theres several things that could be wrong.

 

[Maxter22]

Ok sorry for trying to give help.

 

[Tyeler18]

I'm going to put all my money on power transistor. Cheap, easy fix. Just don't let him know you know what it is and try and get it for cheap.

 

[2GFWDbeast]

I understand your trying to help maxter22, but dont say its 100% this. Cause if he goes out and buys it, and its not it then hes out x amount of dollars. Better to give out an idea of what it is. Unfortunately his problem could be several things.