Stumbling, intermitant rough running

[Bruce Wayne]

My 2003 MM seems to be running like crap after cooling mod install, New MAF, K&N air filter cleaned and oiled, , IAC cleaned , new EGR, any ideas or suggestions, Its like a coil is going south, only runs rough at low rpm and bucks when shifting when the revs are low. Thanks for any help

[RubberCtyRauder]

Brand new MAF?..I might be off base here, but, the computer might need to re-calibrate itself to the new MAF readings thru drive cycles, I'm not sure. Did you disconnect battery when installing? is it the same size MAF? 80mm

[cer0413]

My 2003 MM seems to be running like crap after cooling mod install, New MAF, K&N air filter cleaned and oiled, , IAC cleaned , new EGR, any ideas or suggestions, Its like a coil is going south, only runs rough at low rpm and bucks when shifting when the revs are low. Thanks for any help
Is the maf aftermarket?

[Bruce Wayne]

MAF is new motorcraft oem, just replaced fuel filter and cleaned cam position sensor, there was some crud on it, just have to run out for new clips for the fuel filter now, new fuel filter installed and the symptoms persist, dang!

[RF Overlord]

Its like a coil is going south, only runs rough at low rpm and bucks when shifting when the revs are low. Sounds like the issue Mary had with her car a few years ago...I tried COPs, a new CKP ...nothing helped. Didn't think of the spark plugs because they were still fairly new, but I changed them from Autolite 103s to NGK 4177s per Marty. Bingo. Ran perfectly after that.

[Turbov6Bryan]

I know exactly what your problem is :)

-—–•–——--•–———••---_^‰£€

And a little

¥#——–•

[Turbov6Bryan]

thanks turdbov6bryan with the pontiac picture, how be you and me go for a beer sometime, but in the meantime GFY, I don't need your idiotic responses every time I post something on this forum, maybe you should go lurk on your v6 pontiac sites,if you can't offer any positive feedback , then Shut the f==k up!


What did I do??????? :confused:

Maybe you shouldn't screw me out of money and then act like its my fault once you received parts I shipped you, pay your debt to me!


I might razz you a little here, I could definitely be much worse!

[Bruce Wayne]

Screw you out of money? you know damn well I paid your asking price and the price you asked for shipping, Lets set the record straight here, and don't lie, after you shipped your parts. you wanted more money for shipping them, I have paypal receipts ,if your memory still fails you. so this is why you direct your negative comments every time I post on this forum, GFY turdbo

[Turbov6Bryan]

You know the truth Bruce

We had a gentlemans agreement that you still have not held up your part on

That's why I'm ribbing you

I'm not the one lying


Cheers!

[Bruce Wayne]

Sounds like the issue Mary had with her car a few years ago...I tried COPs, a new CKP ...nothing helped. Didn't think of the spark plugs because they were still fairly new, but I changed them from Autolite 103s to NGK 4177s per Marty. Bingo. Ran perfectly after that.
Thanks for the help RF Overlord, I checked out plugs and COP's sure nuff, #7 looked like it had been misfiring, 50k since last plug change, all good now, no thanks to Turdbov6lyinbryan for trying to derail this thread

[cer0413]

Thanks for the help RF Overlord, I checked out plugs and COP's sure nuff, #7 looked like it had been misfiring, 50k since last plug change, all good now, no thanks to Turdbov6lyinbryan for trying to derail this thread
Good find sir.

[Turbov6Bryan]

Funny Bruce Wayne, YOUR shipping address here shows your name is BRIAN

Get called lyin Brian much? Is that why your calling me names in every post???

Trying to shift the blame are ya?


Gentlemans agreement, man up Mr Scott

[RF Overlord]

The OP has found the solution to his issue, so I think this thread has run its course.