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View Full Version : 4400 RPM "LAG" in third gear 3rd Gear



Ikkesh
04/14/2009, 01:28 PM
So i floor it and merge onto highway, at somewhere between 4,100 and 4,400 RPM in third gear the RPM's "LAG" and hover there for a sec... Idea's?

someone said it's an EGR thing, i doubt it's a clutch tranny thing as the RPM would slip it to a higher RPM and not likly to be a torque converter because again it would slip to higher rpm upon slipping.

I thouhgt it might have to do something with the VVT SOHC to DOH-cam switching that this engine features delaying in it's 3200 RPM (or something like it) switch over.

FPR? fuel delivery idea's?

-Chris from Juneau, Alaska

Ldub
04/14/2009, 01:33 PM
Could be the T C locking up before it shifts to 4th...:_wrench:

VCrossfan
04/14/2009, 03:57 PM
Just to be safe I'd check tranny fluid level, make sure it's topped off. Good Luck

VehiGAZ
04/15/2009, 06:13 PM
not likly to be a torque converter because again it would slip to higher rpm upon slipping.

Disagree... when the TC locks up (in 2nd, 3rd, and 4th) it will lower the engine speed by a couple-few hundred rpms, then again when it shifts into the next-higher gear.

Low engine oil will affect the tranny performance, so check that.