My truck begins to flutter only when pushing the gas regardless of RPM's. Since the sound is only coming from the driver's side near the fender well I believe it's a leaky EGR valve. Now I figured it could also be detonation, but would that occur only on one side of the engine? I have a chip and plan on removing it this week to see if that solves the problem, if not I want opinions as to whether or not the EGR could be it.

 

oh chit, have you checked your sparkplugs? does it sound like an exhaust leak?

 

Yeah, i've checked them. This is an ongoing problem that pretty much started after I installed the LT's. I've checked the bolts and gaskets, nothing. And it's only the driver's side that's making the noise.

 

ok, i guess thats somewhat good, maybe someone else has a clue

 

Anyone else have any suggestions?

 

help????

 

Exactly what is meant by "flutter"?

Recently mine threw a P0401 code. I looked it up and it's "Exhaust Gas Recirculation Flow Insuff Detected"

At the time I was running a microtuner and also had the boost dump solenoid unplugged. I cleared the code, plugged the solenoid back in, and the code didn't come back.

Should I be checking anything ??? or was it just the tuner+dump disconnect confusing the computer?

 

Sounds like the same thing I have going on, it's driving me crazy! I installed JBA shorty headers, and since then I have a fluttering sound I can't track down. I've re-torqued everything 3 times. The only thing I can think of is maybe a leak where the EGR tube connects to the header? I re-used my old EGR tube, and the nut was really in bad shape from rust...I think I'm going to replace that ($78 from the local stealership), I'll let you know if there is any difference.