klutch-

i recently dropped the k-member and motor/trans out my car to change the head gasket. after reinstalling the k-member and engine/trans i got everything back in its place and now the car kinda jumps at WOT around 3500 RPM. i checked all my vacuum lines, wiring plugs, etc. any ideas? i just bought the car but from the one time i drove it before i dropped the motor i dont remember it surging like this.

any advice?
what to look for?
need more info let me know what u need!!

also idk if i have a SES light on the guy i bought it from pulled the bulb or it went out. (im sure it has one on though, gonna try to get a scan tool this weekend just wanted some input)

thx in advance!!!

klutch-

also put new spark plugs and harmonic balencer in the car. sprayed around all vacuum lines and intake with parts cleaner to see if i had any leaks and didnt notice any!

96TransAmboosted

iTrader: (8)

Need more info on the engine itself. is it stock or not? cammed ect

LT1John

man mine does the same thing! ever since a header install. Only at like 5500+ i don't think its a misfire right? Surging is the best way to describe it. I will post a video on it soon to see if yours is the same thing. It did it with old Opti as well. On my car, i fired the ignition wire leading from icm to coil then i just wraped them together and taped it. i am going to sauder them once i get my car back for the transmission shop this weekend. Did you ever have any ignition problems like that?

klutch-

mods=CAI, gutted cat, magna flow catback (this is what i know of, as i said i just bought the car)

na no ignition problems, ill try to get a video myself of the RPM gauge

05HD

Normally, surging is caused by a lean condition. I'd tape a fuel pressure guage to the windshield and go mat it a few times. If the pressure drops off under load, you need either a pump or a filter.

LT1John

good to know

klutch-

gonna try this tomorrow! what should the pressure be around???

klutch-

i did notice the car only does it when its at operating temps. on first start up the car seems to run fine.

(Bump)

05HD

43ish @ WOT is where it should be. What was yours?

klutch-

i didnt have time to check the FP last night i was just going for a lil ride before i left for kentucky for work. when i get back i should have the rest of my parts to do my 6.0 swap but i would still like to resolve the problem for when i sell the LT1

96TransAmboosted

iTrader: (8)

What are you going to ask for the long/short block?

klutch-

im actually giving the LT1 to a buddy of mine to drop in his 2 door 4WD tahoe.

stephanj51

iTrader: (1)

You ever figure out your problem?