Hello all,
I'm new to the super coupe gang and just recently bought what is turning out to be a lemon 1991 thunderbird super coupe. It cranks and sputters like it's trying to go but won't start, it will also stop cranking and all lights will go out for a split second almost like cranking on a low battery but the battery is new and charged, then go right back to cranking. Here is what I've replaced. In this order.
Plugs
Idle air control valve
Coil pack
Fuel filter
Cam positioning sensor - When I replaced this it ran for about 3 minutes then died.
Crank position sensor - When I replaced this it ran perfectly for about a day then I noticed the tach would drop off and the check engine light would come on but the car would run fine. Then after a few minutes the tach would come back. Then I went to start it one morning it would crank and sputter but not start.
New DIS module - When I installed this it fired right up and ran like a top for about a half hour and then the tack dropped off and didn't come back. So I unplugged the dis, waited a few minutes and plugged it back in. After that it fired right up and the tach was working, I drove it around and it worked perfectly then I shut it down and now it's cranking and sputtering but not starting.
I'm stumped, the check engine light comes on when the tack drops out but I don't have an obd 1 reader, it has 40 pounds of fuel pressure and strong spark at the coil pack. It has a new harmonic balancer and bolt and ignition switch. It almost seems temp related, maybe a coolant temp sensor flooding it, but I don't know. The tach episodes seem so random. Any advice would be greatly appreciated.
Thank you.
I'm new to the super coupe gang and just recently bought what is turning out to be a lemon 1991 thunderbird super coupe. It cranks and sputters like it's trying to go but won't start, it will also stop cranking and all lights will go out for a split second almost like cranking on a low battery but the battery is new and charged, then go right back to cranking. Here is what I've replaced. In this order.
Plugs
Idle air control valve
Coil pack
Fuel filter
Cam positioning sensor - When I replaced this it ran for about 3 minutes then died.
Crank position sensor - When I replaced this it ran perfectly for about a day then I noticed the tach would drop off and the check engine light would come on but the car would run fine. Then after a few minutes the tach would come back. Then I went to start it one morning it would crank and sputter but not start.
New DIS module - When I installed this it fired right up and ran like a top for about a half hour and then the tack dropped off and didn't come back. So I unplugged the dis, waited a few minutes and plugged it back in. After that it fired right up and the tach was working, I drove it around and it worked perfectly then I shut it down and now it's cranking and sputtering but not starting.
I'm stumped, the check engine light comes on when the tack drops out but I don't have an obd 1 reader, it has 40 pounds of fuel pressure and strong spark at the coil pack. It has a new harmonic balancer and bolt and ignition switch. It almost seems temp related, maybe a coolant temp sensor flooding it, but I don't know. The tach episodes seem so random. Any advice would be greatly appreciated.
Thank you.