Compression Check ?'s

[Bass Fisherman]

What psi should the cylinders have for a 2002 5.3l motor? Did a check yesterday and got 180 - 190 psi for all eight cylinders.

Thanks,
Paul Ham

[skeet]

thats about right!! dunno the min or max, but remember recalling that 180-190 if just fine

[GasGuzzler]

That is really good. For static the main thing besides looking for a low readings is to make sure one is not too different than the rest. Leak down is a more useful measurement IMO.

[George C]

withing 15 of highest to lowest is good numbers. anything outside that range i would be concern.

static depends on alot of things, my 4.8 only reads as high as 150 but it also has large cam and low compression

as gas guzzler said leak down is the key