chris r

In any gear at 2500 engine stutters when u push the gas. new fuel filter fuel pressure is good. what could it be?

Thizizkai

iTrader: (3)

spark plugs or possibly the fuel pump..I had that happened just replaced the fuel pump and it was ok..but it could be something else..idk someone will chime in

chris r

that's one thing we haven't replaced is the fuel pump. do u know where to get an oem one for cheap?

ConElite

iTrader: (6)

anywhere, they are not expensive just a BITCH to change. lol

myws68u

iTrader: (1)

I had that same problem before Ryne tuned my car. Didn't know what it was, so I just took it like that for a tune. When Ryne was tuning it on the dyno, he looked at it and told me it was 1 of my spark plug wires. The wires were too close to the headers and burn 3 wires. I got new wires with heat sleeves. Problem solved after that.

Gaunt

iTrader: (11)

If your car is due for a plug/wire change anyway, it won't hurt to tackle that first before you start cutting access hatches for a fuel pump install (or do it the hard way and drop the gas tank )

ConElite

iTrader: (6)

Good Point. Invest in some plugs and wires then go from there. If they are the stock ones Chances are u still have the Metal heat shields that are known to cause misfires.

NGK+Whatever brand cables and see what happens.

chris r

thanks guys ill start there plugs havent been changed in a while and wires have never been done.

ConElite

iTrader: (6)

Scrap the metal sleeves

chris r

im going w fuel pump because now its starting not to want to start. like the fuel pump isnt getting the signal to pump.

Gaunt

iTrader: (11)

Did you check if the pump is getting power?

XpEdItIoUs

iTrader: (44)

Did you check the fuel pressure when it didn't want to start?

mannyman84

iTrader: (2)

If that would be the case then it wouldn't be the pump. Make sure u put a gauge before u change the pump. It's not so easy to change u know.

samson_420

iTrader: (1)

Yup, check the pressures. Idle and running. . . .


Not that bad to change if you cut a "trap door".


I haven't done it yet, but I looked into it a bit for future purposes.

chris r

its like that pump doesn't want to work when its cold but once it runs and if u don't let it sit for more than an hour it starts right up. but over night it cranks and wont start then u shut it off and crank it for like a few sec then it starts. my master tech says the pump is going out. and it has fuel pressure while at idle and running but if u stomp on it it doesn't hit power band at all. probably going to swap out the oe for a 255 with in the next few months.