MineMapper
Member
- Joined
- August 1, 2001
- Messages
- 11
- Reaction score
- 0
- City, State
- Baltimore, MD
- Year, Model & Trim Level
- 95 Sport
Okay guys. I'm at my wits end here. Any and all ideas will be much appreciated.
Our '95 Sport 4x4 has for the last 8 months occasionally refused to start. It will crank until kingdom come, but never fire. You can go weeks with nary a problem, and then the bugger will misbehave for a week.
At first it would be when it was warm. First thing in the morning, it would fire up every time. If you stopped for coffee or gas, it would not restart. Then it progressed to the point where the conditions seem to be completely random. Hot, cold, full tank, empty tank, rain, sun, light dark, you name it. Now we're at the point where if my wife gets stranded at the 7-11 one more time, I'm afraid she may take a sledge to the truck.
I've been around internal combustion engines long enough to know that you need fuel and fire to make them run. So the first thing to check was the fire. New plugs and wires didn't solve the issue. No amount of starting fluid squirted down the pipe would make her go.
Things are complicated by the fact that when it eventually does start, it clears all the codes, so the shop can't tell you what the problem may have been. Finally it died a gas station that had a diagnostic tool.
Crankshaft position sensor.
OK, so that might interrupt the signal to the fuel pump if its faulty, so $150 later, there's a new one in there. The very next morning(!!!!!) I get the call at work from my wife.
So we get it towed to the shop, hoping that the computer will retain the error codes. They report a faulty thermostat and a faulty back flow pressure sensor (at least, that's what I think it was). $200 smackers later, we're back in business. At least, for the next 48 hours we are.
He also reported that the throttle body was dirty, so I cleaned that as well. Still no dice.
Deciding that I had followed the fire trail long enough, I've now started on the fuel trail. Fuel filter went in last night (87 octane is very refreshing BTW). She fired up afterwards, and stopped and started over the course of the next hour just fine. This morning? Nada.
I have noted that when it won't start, you don't hear the fuel pump prime up when you turn the key to 'on'.
Before I drop more cash on a new fuel pump, does anyone have ideas on things I may have missed? Maybe someone has had similar problems and can save me some more time money and heartache?
thanks
Matt
Our '95 Sport 4x4 has for the last 8 months occasionally refused to start. It will crank until kingdom come, but never fire. You can go weeks with nary a problem, and then the bugger will misbehave for a week.
At first it would be when it was warm. First thing in the morning, it would fire up every time. If you stopped for coffee or gas, it would not restart. Then it progressed to the point where the conditions seem to be completely random. Hot, cold, full tank, empty tank, rain, sun, light dark, you name it. Now we're at the point where if my wife gets stranded at the 7-11 one more time, I'm afraid she may take a sledge to the truck.
I've been around internal combustion engines long enough to know that you need fuel and fire to make them run. So the first thing to check was the fire. New plugs and wires didn't solve the issue. No amount of starting fluid squirted down the pipe would make her go.
Things are complicated by the fact that when it eventually does start, it clears all the codes, so the shop can't tell you what the problem may have been. Finally it died a gas station that had a diagnostic tool.
Crankshaft position sensor.
OK, so that might interrupt the signal to the fuel pump if its faulty, so $150 later, there's a new one in there. The very next morning(!!!!!) I get the call at work from my wife.
So we get it towed to the shop, hoping that the computer will retain the error codes. They report a faulty thermostat and a faulty back flow pressure sensor (at least, that's what I think it was). $200 smackers later, we're back in business. At least, for the next 48 hours we are.
He also reported that the throttle body was dirty, so I cleaned that as well. Still no dice.
Deciding that I had followed the fire trail long enough, I've now started on the fuel trail. Fuel filter went in last night (87 octane is very refreshing BTW). She fired up afterwards, and stopped and started over the course of the next hour just fine. This morning? Nada.
I have noted that when it won't start, you don't hear the fuel pump prime up when you turn the key to 'on'.
Before I drop more cash on a new fuel pump, does anyone have ideas on things I may have missed? Maybe someone has had similar problems and can save me some more time money and heartache?
thanks
Matt
