Hi, John Lenko

My 1993 2.2 Cav, having just passed 253,500 kms developed a rough idle.

Compression test revealed 1-150,2-75, 3-70,4-175

I thought at first valves,springs or piston rings but

No white smoke, coolant in oil.

I wondered if it was possibly a damaged gasket between cylinders 2 and 3-impossible- but no your post says it CAN

happen

http://www.j-body.org/forums/read.php?f=11&i=116416&t=116398#116416

Really, just to says thanks for the info


Alont

I would first pull the spark plugs see if you got any kinda coolant deposites on youre plugs, Could have a tiny hole in the hd gasket. Are you losing coolant?.

Good Luck.

Hi Rich

all spark plugs are a perfect colour-no deposits-no coolant loss

Alont

Could also have a part of the head gasket thats got a leak some where. Or intake leak.

I realise this is "Old" by now but in case anyone has a similar problem.

Just an update, removed the cylinder head and took it to the local friendly machine shop.

Head was cracked and replaced,

Runs on all four again now


Alont

yup same problem i have .. im in the process of doing a head change myself.. ill be done after thanksgiving haha