Hello all,
Ive been following this site for years and finally needed to register and post my own issue. I have a 92 fj80 3FE 170k and have not been able to drive it since I purchased a month 1/2 ago it had been sitting for 1yr. It drove alright when I bought it would not accelerate normally though, so I put a full tank of 93 (to spice up the old gas) and Lucas injector cleaner and it seemed to come back to life but a few days later it started to shake bad and misfire after a few days of driving (symptoms were no power could not accelerate above 40mph and 20mph uphill and the rpms would jump without accelerating any faster when pushing gas pedal but in N it was calm however) so thought it needed a tune up and did oil change, wires, plugs, distributor cap and rotor. The original plugs were soot black (since I got this truck there has been 3 replacements of the spark plugs they were changed after each diagnosis attempt because several were fouled) and this did not fix the issue then a mechanic noticed there was a misfire in 1-2 cylinder and replaced one fuel injector which was faulty but this did not fix the issue. I thought it might be the catalytic converter because it was very hot but had this checked and it and the exhaust system where in good shape with regular flow.
After several mechanic shops and many tests including a leak down test it was decided that the head gasket was blown between cylinders 1-2. So off it went and my pockets went empty. I just got the truck back several days ago and it was driving fine around town at 45-50mph then yesterday I went to get my emissions test and it Past then decided to test it on the interstate at 65-70mph filled the tank with 87 before I got on the road and was at 65mph for about 5 mins before I lost power with pedal to the floor could not get above 40mph and a slight shake came back with a burnt smell. I made it off the road and saw the puddle of what smelled like and felt like gas and oil colored black dripping from the rear exhaust manifold flange (PICS ATTACHED) so I had it towed. WHAT should I do I am burnt out, this has been an ongoing battle I feel like I cant win especially financially. I will bring it back to the shop that did the head gasket set, the work is under warranty ( Could this have been caused by putting in a new head gasket set and replacing several retainers?) . From what I can find online the most likely parts causing these problems are a leaking fuel injector, a fuel regulator that's stuck closed, or a restricted fuel return line. What would you do in this situation I would appreciate advice. Has anyone been in this situation?
Thank you for any input.
Ive been following this site for years and finally needed to register and post my own issue. I have a 92 fj80 3FE 170k and have not been able to drive it since I purchased a month 1/2 ago it had been sitting for 1yr. It drove alright when I bought it would not accelerate normally though, so I put a full tank of 93 (to spice up the old gas) and Lucas injector cleaner and it seemed to come back to life but a few days later it started to shake bad and misfire after a few days of driving (symptoms were no power could not accelerate above 40mph and 20mph uphill and the rpms would jump without accelerating any faster when pushing gas pedal but in N it was calm however) so thought it needed a tune up and did oil change, wires, plugs, distributor cap and rotor. The original plugs were soot black (since I got this truck there has been 3 replacements of the spark plugs they were changed after each diagnosis attempt because several were fouled) and this did not fix the issue then a mechanic noticed there was a misfire in 1-2 cylinder and replaced one fuel injector which was faulty but this did not fix the issue. I thought it might be the catalytic converter because it was very hot but had this checked and it and the exhaust system where in good shape with regular flow.
After several mechanic shops and many tests including a leak down test it was decided that the head gasket was blown between cylinders 1-2. So off it went and my pockets went empty. I just got the truck back several days ago and it was driving fine around town at 45-50mph then yesterday I went to get my emissions test and it Past then decided to test it on the interstate at 65-70mph filled the tank with 87 before I got on the road and was at 65mph for about 5 mins before I lost power with pedal to the floor could not get above 40mph and a slight shake came back with a burnt smell. I made it off the road and saw the puddle of what smelled like and felt like gas and oil colored black dripping from the rear exhaust manifold flange (PICS ATTACHED) so I had it towed. WHAT should I do I am burnt out, this has been an ongoing battle I feel like I cant win especially financially. I will bring it back to the shop that did the head gasket set, the work is under warranty ( Could this have been caused by putting in a new head gasket set and replacing several retainers?) . From what I can find online the most likely parts causing these problems are a leaking fuel injector, a fuel regulator that's stuck closed, or a restricted fuel return line. What would you do in this situation I would appreciate advice. Has anyone been in this situation?
Thank you for any input.
Last edited: