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Q: Why do you have no compression in 3 cylinders of a 454?
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Ford focus 2002 running on 3 cylinders?

Check the spark plugs and wires Do a compression test


What should the compression be on a 1985 454 Chevy truck?

A good 454 will have at least 150 PSI per cylinder.


What is the inidivual cylinder compression of a 1986 Chevy 454 truck engine?

You will have to do a compression test yourself to know that. A engine that is in good shape should have at least 150 LBS. per cylinder. There can not be more then 20 LBS. difference in any cylinders. It has to have at least 100 LBS. for the cylinder to fire at an Idle.


What does 454 engine Chevy stand for?

454 is total volume in cubic inches for all cylinders together. Chevy = Chevrolet. The brand.


What will make a big power difference on a 454?

If your 454 have low compression piston, you can replace it with high compression but you will need to use premium (91 octane) gas, but it will make noticable power difference


Why does a Chevy 350 have low compression on adjacent cylinders?

If any two adjacent cylinders have low compression it's probably caused by a blown head gasket.


Why are Cylinders 2 and 3 not working but the spark is okay on 1989 Toyota Corolla coil and distributor with carburetor?

This sounds like your head gasket has blownbetween cylinders 2 & 3.this will cause a compression loss on the affected cylinders.you need to have a compression test carried out on your engine.AnotherIf you're CERTAIN that the spark is good and it's timed properly, next I'd check the compression in those two cylinders. It's suspicious to me that the two non-functional cylinders are adjacent. If the engine has overheated any time in the last year you have probably warped the head. A simple compression test will tell the story.


What is compression on the cylinders of 2001 Holden rodeo diesel 2.8lt?

The compression on the cylinders of a 2001 Holden Rodeo diesel 2.8lt is not stated. It is stated that the 2001 Holden Rodeo diesel 2.8lt has a high compression g200z motor.


What cylinders are on a 1983 Chevy 305?

it depends if you have a 305 or 305ho , 305 8:1 compression cupped cylinders 305ho has 9:1 compression with valve cut pistons


I have no compression on a 92 Ford Escort 1.9L?

If you have no compression in all 4 cylinders your timing belt is broke.


A smoothly operating engine depends high compression?

It depends on equal compression between all cylinders.


How do you bore out a Chevy small block 350 engine to a Chevy 454?

You can't... There's not enough steel in the cylinders to bore it that far. If you want a 454, you need to by a big block 454 Chevy engine.