bash
Junior Member
- Joined
- Feb 9, 2016
- Posts
- 13
- Reaction score
- 0
- Location
- Best Part of Alabama
- First Name
- Mathew
- Truck Year
- 1987
- Truck Model
- R10
- Engine Size
- 350
My 350 TBI is running very rough. I have repaired a few things:
1. Leaking intake gasket (Leaking oil from the valley)
2. EGR solenoid replaced (Hose was connected to vent. Hose barb was broken)
3. Leaking vacuum hoses replaced
4. Tightened loose spark plug
5. Replaced fuel filter
Here is the rest of the story. A month ago the idle became a little rough (I could notice it, nobody else seemed to notice it) after moving the spark plug wires to a loom. I thought that maybe I disturbed the vacuum system in some way but could not find any leaks. I later realized that the EGR solenoid hose was on the vent nipple and the actual hose nipple was broken off, so I replaced that. A couple of weeks later the truck started dying after running for an hour or so. Once the engine cooled down it would run again. If I forced it to run when it wanted to die by cranking it over and over I would get detonation and backfires. I couldn't find the exact problem but noticed that the intake was barely leaking a little water out of the front of the gasket and had been leaking oil out of the valley so I went ahead and replaced it. Now the truck idles/runs rough still but in a different way. When I crank it sometimes it seems to idle and run fine. If I rev it to 2k rpm on the third rev it starts to run rough. On that rev if I let off of the gas quickly it will fumble and die. When I am in traffic from a stop when warm if I hit the gas too quickly it will die. I have to delicately give it gas to keep it from dying. Sometimes it hesitates then jumps. Also when slowing down and especially if slowing down and turning it likes to die. I am constantly having to crank it after dying while driving down the road. Normally after coming to a stop or turning or going around a tight curve at a low speed. It seems like turning to the right is more likely to kill the engine than left. The engine is about five months old and has around 4000 miles on it. It is a brand new GM Goodwrench long block. I should mention that I was rear ended very hard about a month ago and a week or so before that I ran out of gas on the interstate. I believe that I turned the key off when that happened, but the fuel pump runs constantly when the key is turned on. It doesn't cut off after a few seconds like it is supposed to when the engine is off. I guess the previous owner hard wired it to a switched source. The pump does run and you can hear it like you always have been able to. The other tank is rusted through so I cannot switch tanks to see if it is a FP issue. Can anyone help me with what I need to be checking?
1. Leaking intake gasket (Leaking oil from the valley)
2. EGR solenoid replaced (Hose was connected to vent. Hose barb was broken)
3. Leaking vacuum hoses replaced
4. Tightened loose spark plug
5. Replaced fuel filter
Here is the rest of the story. A month ago the idle became a little rough (I could notice it, nobody else seemed to notice it) after moving the spark plug wires to a loom. I thought that maybe I disturbed the vacuum system in some way but could not find any leaks. I later realized that the EGR solenoid hose was on the vent nipple and the actual hose nipple was broken off, so I replaced that. A couple of weeks later the truck started dying after running for an hour or so. Once the engine cooled down it would run again. If I forced it to run when it wanted to die by cranking it over and over I would get detonation and backfires. I couldn't find the exact problem but noticed that the intake was barely leaking a little water out of the front of the gasket and had been leaking oil out of the valley so I went ahead and replaced it. Now the truck idles/runs rough still but in a different way. When I crank it sometimes it seems to idle and run fine. If I rev it to 2k rpm on the third rev it starts to run rough. On that rev if I let off of the gas quickly it will fumble and die. When I am in traffic from a stop when warm if I hit the gas too quickly it will die. I have to delicately give it gas to keep it from dying. Sometimes it hesitates then jumps. Also when slowing down and especially if slowing down and turning it likes to die. I am constantly having to crank it after dying while driving down the road. Normally after coming to a stop or turning or going around a tight curve at a low speed. It seems like turning to the right is more likely to kill the engine than left. The engine is about five months old and has around 4000 miles on it. It is a brand new GM Goodwrench long block. I should mention that I was rear ended very hard about a month ago and a week or so before that I ran out of gas on the interstate. I believe that I turned the key off when that happened, but the fuel pump runs constantly when the key is turned on. It doesn't cut off after a few seconds like it is supposed to when the engine is off. I guess the previous owner hard wired it to a switched source. The pump does run and you can hear it like you always have been able to. The other tank is rusted through so I cannot switch tanks to see if it is a FP issue. Can anyone help me with what I need to be checking?