I have a ,95 ranger with 137,000 miles and the engine started shaking all the time, took it to the mechanic and checked compresion and came up with 110, 125,130 on the drivers side from front to back on compression and 95, 130, 130 on the passenger side, and told me the coil pack was bad, took it to another mechanic and told me that the low cilinder was the problem, he disconect the plug wire and was very litle diference on idle, who should I trust without buying unnecesary parts?

 

Could be a broken engine mount.

 

So you think compression is not an issue?

 

I would lean toward a plugged/faulty injector.

 

when he undid the wire, was there spark jumping from plug wire to ground? if there was a spark its not the coil, if there wasnt, its either the coil or the wire arching somewhere. i'd suspect the coil first

 

Hey Justin thanks for that reply, and yee there was spark when he discoed the cable,thats when he told me about the weak cylinder compression

 

Any one pull the plugs to see how each cylinder is burning?
Low compression can foul a plug if it is a ring problem i.e. worn cylinder walls stuck rings etc. Pull your plugs and look to see if they first look the same cylinder to cylinder, is one oily clean replace. Do a leak down test to determine why cly. pressure is down.
Other than that you are just guessing.

Ted