Engine Performance problem
1981 Jaguar XJ6 6 cyl Two Wheel Drive Automatic 116500 miles
I have a 81 jaguar xj6 4.2L strait 6 with dual over head cams in witch I restored I redid all the fuel systems and redid the whole car put many new parts on I have compresion spark and sufficient fuel pressure. I had the car running great I drove over 150 miles one day parked the car did absolutly nothing to it and started it the next day I was only running on the rear 3 cylnders the front 3 were no longer pushing out power or getting hot so I believe they r not running for whatever witch reason. Please I have tried everything.