throttle body

help with my vehicle?

i have a 2000 chevy tracker with 250k miles on body and 80-90k on engine i bought it from my boss and it ran fine than it started to putter and die on me after driving for a while i change the fuel pump relay sparkplugs airfilter oil brought it to goodyear and they did combustion buildup in intake and throttle body. runs fine for a while than it starts puttering almost like a back fire (FART) than about 20 minets later it will start again. it seems like if left at idle or low speed it has trouble but after while will start again. doesnt overheat or anything idk maybe fuel pump oh i also put in a fuel replacer like chemical from napa to remove any buildup in tank. please help

s10 bad head gasket??? hope not?

I4, 5spd, 4x2. Got the truck a few weeks ago and ran fine. Developed a knocking sound which I thought was the throw out bearing going out but that wasnt it. the truck recently died on the side of the highway, we were able to start it again and get it to the gas station, I noticed coolant leaking, there was a lot around the right wheel well. Put some coolant in and got it home, Pulled the radiator out and checked all the hoses, everything turned out fine, seemed like when we died the coolant was leaking from the right bottom side of the radiator( if looking from the driver seat). Checked the oil and the dipstick came back dry, Changed the oil right away and it ran very noice with no smoke, smells or knocks......perfect. This lasted two days until I got in the truck one night after work and it just took a while to get it started, just didnt want to turn over. Kept trying with the throttle open and it fired up. This hard start happens at random but definetely hesitates every time to start. Once running, there is quiet a bit of white smoke from the tail pipe but goes away after 10-15 minutes. I had a car with a complete blown head gasket so it wasnt that much smoke but I would say little more then normal. When driving sometimes it hesitates while accelerating and sometimes it does fine, usually better after its warmed up but still hesitation happens at random.
Some things I found out of place, air filter dirty, moisture around fuel filter, very dirty throttle body and since we replaced the coolant it seems to bubble in the reservoir after shuting off the truck( i didnt "burd the system properly yet)some sort of oily build up on top of the valve cover near the firewall, around the air hose that goes into the valve cover, also there is a vacuum leak, on the driver side near the fender, there is a three way plug, I dont know where the third plug goes, I might just replace it with a straight plug . Where do I start? I will be doing all the work myself but since I recently bought the truck, I havent had the proper time to invest into it. Where do I begin? I really need some professional guidance. BTW, the check engine light is NOT on. Could I have a blown gasket or not?
Also, this is my short list of things to be replaced on my next day off, fuel filter, air filter, water pump, thermostat, drain and refill antifreeze, drain and refill oil, maybe an engine cleaner, thermostat. The temperature gauge keeps going up and down, mostly on the higher side. Oil gauge jumps up and down especially on accelertion

do I have a blown head gasket on my s10?

I4, 5spd, 4x2. Got the truck a few weeks ago and ran fine. Developed a knocking sound which I thought was the throw out bearing going out but that wasnt it. the truck recently died on the side of the highway, we were able to start it again and get it to the gas station, I noticed coolant leaking, there was a lot around the right wheel well. Put some coolant in and got it home, Pulled the radiator out and checked all the hoses, everything turned out fine, seemed like when we died the coolant was leaking from the right bottom side of the radiator( if looking from the driver seat). Checked the oil and the dipstick came back dry, Changed the oil right away and it ran very noice with no smoke, smells or knocks......perfect. This lasted two days until I got in the truck one night after work and it just took a while to get it started, just didnt want to turn over. Kept trying with the throttle open and it fired up. This hard start happens at random but definetely hesitates every time to start. Once running, there is quiet a bit of white smoke from the tail pipe but goes away after 10-15 minutes. I had a car with a complete blown head gasket so it wasnt that much smoke but I would say little more then normal. When driving sometimes it hesitates while accelerating and sometimes it does fine, usually better after its warmed up but still hesitation happens at random.
Some things I found out of place, air filter dirty, moisture around fuel filter, very dirty throttle body and since we replaced the coolant it seems to bubble in the reservoir after shuting off the truck( i didnt "burd the system properly yet)some sort of oily build up on top of the valve cover near the firewall, around the air hose that goes into the valve cover, also there is a vacuum leak, on the driver side near the fender, there is a three way plug, I dont know where the third plug goes, I might just replace it with a straight plug . Where do I start? I will be doing all the work myself but since I recently bought the truck, I havent had the proper time to invest into it. Where do I begin? I really need some professional guidance. BTW, the check engine light is NOT on. Could I have a blown gasket or not?
Also, this is my short list of things to be replaced on my next day off, fuel filter, air filter, water pump, thermostat, drain and refill antifreeze, drain and refill oil, maybe an engine cleaner, thermostat. The temperature gauge keeps going up and down, mostly on the higher side. Oil gauge jumps up and down especially on accelertion

My truck wont fire up! (1990 F-150 5.0 V8)?

Yesterday my wife called me to my cell and informed me our truck died on her on a usual route to pick up the kids from school. I walked where she was to inspect the truck. I tried starting it and all it did was crank over real slow. So I called a friend for a booster jump. That failed! It cranked real fast with the jump but it did not fire. Now a little info on the truck. I tried three different starter relays. I even went to the bone yard and installed a used ECM module. I tried replacing the ECM relay and fuel pump relay. The fuel rail has pressure so I know its not the fuel pump. And I sprayed starter fluid into the throttle body, that didn't work.
Also to start my truck I use a screwdriver and tap the starter relay with the key on position. I used to be able to wiggle the gear selector to start it with the key. I am stuck. I would appreciate any ideas or advice so I can get back on the road again! Thanks


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