Convincent
Member
I've got a 2003 Jetta TDI Wagon. And it has a strange shudder that you can feel in the steering wheel, and whole car really. It happens under very predictable and narrow range of conditions and I'm trying to figure out what system it is coming from... engine, suspension, turbo?
It generally occurs right around 1750-1850 RPM when slightly under load - such as going up a slight hill or accelerating on a flat. When it occurs one can feel it all over, its a pretty substantial shudder. When it happens I let off the gas and it immediately goes away (all within a second or so) then I continue driving.
Seems to happen more when the AC is on - possibly due to the extra load the AC puts on the engine.
My initial thought was that it was in the suspension, but the narrow RPM band and responsiveness to letting off the accelerator would suggest that it is in the engine.
Any ideas? What should I check?
It generally occurs right around 1750-1850 RPM when slightly under load - such as going up a slight hill or accelerating on a flat. When it occurs one can feel it all over, its a pretty substantial shudder. When it happens I let off the gas and it immediately goes away (all within a second or so) then I continue driving.
Seems to happen more when the AC is on - possibly due to the extra load the AC puts on the engine.
My initial thought was that it was in the suspension, but the narrow RPM band and responsiveness to letting off the accelerator would suggest that it is in the engine.
Any ideas? What should I check?