Hey guys, I have a 98 runner 4x4. The 3.4 has a little over 212k. The other day I was driving and it began to act up. The truck seems to of lost all power. It runs and drives but it is extremely weak. I checked plugs, made sure all fluids were in order. Everything checks out, no weird noises,smoke ,etc. Have any of you had similar problems? Any advice? Thanks

 

Check engine light on? Have you checked fuel pressure?

 

Check engine light is not on. How do you check fuel pressure?

 

On the fuel rail there is a banjo bolt, you would have to buy a fitting to check it. Should be around 38 PSI. Is it running rough and low on power, or runs fine and low on power? I would also clean the MAF sensor real quick. Can cause a lot of problems and takes 10 minutes to clean.

 

Do a complete tune up first off. A compression test while doing the spark plugs would be a good idea as well.

 

it runs fine, no rough ideals or white smoke. I will have fuel pressure tested and I will check maf sensor. thanks

 

plug cat or timing jump are things that come up if all those other checks check out

 

New timing belt,plugs,water pump,and cleaned maf sensor, changed the oil(always synthetic) and cleaned out top end with seafoam. Then the other day it died on me and wouldn't restart. So i changed fuel pump and filter. Truck runs great now.

 

Thank you for following up! few and far between... hopefully you needed all that work and it wasn't just throwing $$$ at the problem!