Got a 95 Chevy Suburban 4wd,350 5.7 TBI,178k miles, I've changed every sensor under the sun climate temp sensor,map sensor,throtle position sensor,coil,wires plugs,distributor cap fuel filter,fuel pump,EGR valve, presure cleaned the injectors and still my 95 truck with a tbi hesitates and misses down the road,could it be it needs a timing chain ? If it is what am I looking at cost to get it changed out Any ideas out there for you season obs owners... Debating on keping the truck or just cutting out my loses and either parting it out or sell it running..

 

How do you know it a sensor?

Could be a blocked up cat. They cause all sorts of trouble. Disconnect the exhaust from the cats and do a test run...

 

I did some research on line and a lot of people have had the same issues so I started replacing sensors because the truck runs good other then that hesitation, I really like my truck and its been good to me but its just getting frustrating, I'd be willing to change the timing chain but I just gotta be sure is that .. I've read that it could be the brake booster also I don't know what to believe anymore.. lol..