Weak engine power on 1994 Isuzu Pickup

I have a problem with my 94 Isuzu Pickup with engine power. It seem to be weaker all of a sudden. It happened when im driving to work and my truck slow down to a point it seems i put on some brakes on or was pulling something behind me. I pulled over to see if my brake were the problem but didnt seem my brake were the problem. Now im thinking it has to do with my engine. When i step on the gas it seems to have a hard time moving forward. Its even more obvious when i go up hills. Whats worst is my gas consumption has gotten worst. If there is any additional information you need i would be happy to tell you. I hope you can help me with my problem.

by in Palos Verdes Peninsula, CA on May 02, 2011
1 answer 1 comment
ANSWER by on May 03, 2011
Have exhaust backpressure checked for possible cat conv problem. Have the fuel pressure and volume checked. Make sure timing is set correctly. Have done at a qualified shop.
COMMENT by on December 17, 2012
i would check the clutch. my truck had the same problems and it was the clutch.