I've been having issues with my truck for months now. The dealer is of no help. This last visit they had it for almost three weeks and all they did was clean the EGR valve... and they still charged me the $100 deductible!:bang
When I first take off in the morning, truck will stutter in OD if I lay into it a little bit. If I step on it hard and it downshifts, it doesn't do it. Once warmed up fully, it doesn't do it either.
On top of this, with any of my tunes loaded on, the truck will shift erratically. I have the rev limit set at 4150rpms. Taking off from a stop, truck will shift anywhere from 3300rpms to 3700rpms. Never consistent.
Truck also pukes coolant with tunes loaded.
Put it back to stock, no problems what so ever. I am only running an SCT with Erics tunes, ARP studs and a muffler delete.
Studs were put in about 3kmiles ago. Also had a reman transmission put in about 2kmiles ago (roughly). Tranny fluid smells burnt, but looks perfectly clean.
I data logged EOT vs ECT. At idle, temps are normal. Driving, my EOT drops like a rock, which obviously isn't really happening. EOT will drop to 120 or so and continue dropping until I shut the truck off. Last time I data logged, EOT started at 460 degrees F! Yeah right... then dropped to 95 or something ridiculous. I'm going to get the EOT sensor since its only $30 and try replacing that first. I've been told it can tell the ECM the motor is cold and cut fuel and timing.
Any other suggestions? Anything I can datalog? Anything? I'm getting REALLY frustrated with this truck.
This all was a very gradual problem that came about after the tranny install/headstud job. Gradually came about...
When I first take off in the morning, truck will stutter in OD if I lay into it a little bit. If I step on it hard and it downshifts, it doesn't do it. Once warmed up fully, it doesn't do it either.
On top of this, with any of my tunes loaded on, the truck will shift erratically. I have the rev limit set at 4150rpms. Taking off from a stop, truck will shift anywhere from 3300rpms to 3700rpms. Never consistent.
Truck also pukes coolant with tunes loaded.
Put it back to stock, no problems what so ever. I am only running an SCT with Erics tunes, ARP studs and a muffler delete.
Studs were put in about 3kmiles ago. Also had a reman transmission put in about 2kmiles ago (roughly). Tranny fluid smells burnt, but looks perfectly clean.
I data logged EOT vs ECT. At idle, temps are normal. Driving, my EOT drops like a rock, which obviously isn't really happening. EOT will drop to 120 or so and continue dropping until I shut the truck off. Last time I data logged, EOT started at 460 degrees F! Yeah right... then dropped to 95 or something ridiculous. I'm going to get the EOT sensor since its only $30 and try replacing that first. I've been told it can tell the ECM the motor is cold and cut fuel and timing.
Any other suggestions? Anything I can datalog? Anything? I'm getting REALLY frustrated with this truck.
This all was a very gradual problem that came about after the tranny install/headstud job. Gradually came about...