Did you check compression with the throttle blades OPEN or CLOSED? Also, was
this a wet or dry test?
Normally, if the cylinders are within 10% of each other, that's fine.
- Bernd
> Hey guys,
>
> I did a compression check of my engine this morning and all the
> cylinders are showing 180-185 psi except for #4 and #8 which are showing 160
> psi. The truck just hit 38,000 miles so its out of warranty. Any
> suggestions?
>
> Thanks,
>
> Doug Myers
> -------------
> '99 Dakota RC/SB 5.2L/5-speed/3.92SG
> K&N Gen II, B&F Billet TB, Hughes Stage 1 Intake, 180 T-stat,
> MP cam, MP headers, MP catback, MP plug wires, Accel Supercoil,
> Custom Computer by Ron Zimmer, Centerforce Dual Friction Clutch
>
>
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