Loss of power when going up hills ???

Cheers mate I will get my mate to do a compression test and look into that !
Thanks...

Probably more important to do. Cylinder leakage test, this will 100% eliminate or confirmin head gasket failure . ( there are umpteen different ways a cylinder head gasket can fail)

This for me is important diagnoses .

Steve.

i think my head gasket may have gone as i have a oil leak and i think its coming from there would a compression test prove this???

myers647 wrote: i think my head gasket may have gone as i have a oil leak and i think its coming from there would a compression test prove this???

From what you are describing mate, then no, not in your case. What you are explaining is an external oil leak, coming from an oil way MAYBE from the head area/gasket.

What the diffrance was I was saying before is that the cooling system may be pressurising due to INTERNAL cylinder leaking gasses entering the cooling system, causing engine temp problems.

In your case, I'd advise you to clean of the contaminated area as best as you can, run it and check it hourly,daily , weekly or monthly. A leak has to start somewhere and if you check it often enough, you will be able to identify the source.

Hope this help you out mate,

Steve

Have you checked to see if the brakes are getting hot/binding?

I know this is an old thread but I must thank you for posting it. My Jimny O2 has been VERY slow on hills for a while now, a mystery because no errors or alarms ever show. Many mechanics gave up. Someone on this forum suggested it is caused by a blocked catalytic converter. A mechanic in an Italian hill village has replaced the cat with one from a van, now my Jimny hardly notices hills even when running on LPG. It drives like a little sports car now, fantastic to get it driving well again.
THANKS