97 ram 1500 318 miss fire problem

[piercedarkness86]

I have a 97 ram with 318 I'm getting a multiple misfire code on a few cylinders. I've replaced the plugs, wires, cap, rotor, pickup coil, coil, cleaned out the cat. At first it took a while to get up to speed then it wouldn't acceleration over 40 mph then 20 what are some other possibilities. I've owned a 89, 91, and now I have the 97 all with the 5.2l and I've never had this problem so I'm clueless as to what else to do. I don't want to keep putting money into it and it not fixing the problem

 

[dodge dude94]

Read this:
http://www.ramforum.com/f61/plenum_gasket_what_where_what_should_i_do_about_*info*-37635/


Sounds like you have a clogged cat.

 

[piercedarkness86]

There's nothing left in the cat I cut the side and busted all the stuff out and welded it back closed

 

[dodge dude94]

Yeah, I just noticed that in your OP. With that said, does it rev up fine in park or neutral?

 

[piercedarkness86]

Nope

 

[dodge dude94]

mkay.
So you can't rev it in neutral yet you've gutted the cat. Stupid question, but you have verified the firing order is correct, right?

 

[piercedarkness86]

Yes after I changed the cap and rotor I drove it over 100 miles before it started acting up so I searched the Internet and the cat coil and pick up coil were possibilities so I replaced them and it still has the same problem I was thinking it was the pickup coil cause when I changed the cap I saw that someone had previously pinched the wires to it

 

[jbmobbs]

Mine did that. My problem was low compression. I'm just swap pin a 5.9 into it.

Sent from my DROID RAZR using Tapatalk

 

[dodge dude94]

So firing order is ruled out, does it do it warm, cold or does it matter?

 

[piercedarkness86]

Don't matter but it's consuming gas faster I also changed the O2 sensor before the cat

 

[kokomo506]

I had the same problem. It turned out that the non OE fuel pump I put on it last year wasn't performing properly. I replaced it with one that meets the OE standard and now runs great.