Helppp!!!
#11
Join Date: Nov 2007
Location: Eastern PA,
Posts: 10,465
Valves too tight= No start or really bad idle, this will sometimes clear up when you rev the motor do to flex in the valve train. Easy to check for with a vacuum gage, Vacuum gage will jump from 5 to 13 In extremely fast.
Valves too loose= No start or A LOT of noise. The valves should be clapping like me at a Styx concert. Easy to check with a vacuum gage, Vacuum will fall off to almost nothing when you step on the gas.
Another option is a jumped timing chain. Again I going by "Idles great" that something I never heard from someone with valves out of ajustment.
Valves too loose= No start or A LOT of noise. The valves should be clapping like me at a Styx concert. Easy to check with a vacuum gage, Vacuum will fall off to almost nothing when you step on the gas.
Another option is a jumped timing chain. Again I going by "Idles great" that something I never heard from someone with valves out of ajustment.
Last edited by Gorn; 03-18-2014 at 09:52 AM.
#12
what do i need to do if it jumped time, cause it idles at 1,000 rpms n smooth,just when it goes n gear..its really sluggish like no power then sometimes itll be hard to start like as if batteries died
#13
Join Date: Nov 2007
Location: Eastern PA,
Posts: 10,465
Timing chain jumping would mean a new timing chain. The whole front of the motor has to come off. A very rare issue with the 3.4. The main cause for jumping timing chains is runung up to high RPMs the letting off the gas real fast.
Have you tested the Cat yet, cause it still sounds like Cat to me.
Have you tested the Cat yet, cause it still sounds like Cat to me.
#17
Join Date: Nov 2007
Location: Eastern PA,
Posts: 10,465
Is there a torque converter sensor? Do you mean the torque converter clutch? Neither have a sensor I am aware of. The PCM knows when the clutch is engaged and can compare RPM to MPH and it could know if it was working if the engineers wanter to monitor it.
The torque converter itself is not controled or monitored, it is just a piece of hardware. Even on a 2011 if the torque converter fails there are no warning light the car djust does not go.
The torque converter itself is not controled or monitored, it is just a piece of hardware. Even on a 2011 if the torque converter fails there are no warning light the car djust does not go.
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