dagit1902
Member
- Joined
- Dec 21, 2011
- Messages
- 6
- Vehicle Year
- 1987
- Transmission
- Automatic
Hi I have a 1987 ford ranger with a 2.9 v6 that is driving me nuts. This truck is very hard to start hot or cold. Here is a long list of things I have replace brand new!
map sensor
plugs
wires
cap
rotor
oxygen sensor only has one
intake air sensor
EGR valve
distributor assembly
TFI on the back of the distributor
both fuel pumps in tank and on frame and fuel filter
coolant temp sensor the one for the computer and the one for the gauge
throttle position sensor
air filter
coil
alternator and battery
I pulled the codes and the computer is all over the place from, spout to map sensor. Even replaced the computer, and it still did the same thing. Checked the fuel pressure and it's at 40 psi. when it runs at idle It makes a little pop noise from the exhaust every now and again, but when it's going down the road it gets up and goes, no hesitation, runs great. Let it sit, and it cranks and cranks then starts to fire, then finally starts. I have tried cycling the key and that doesn't help at all. I put a timing light on it and the closer I get to 10 degrees before TDC (with spout connector pulled), the truck runs like crap.The further I get away from any markings on pully the better it runs. The truck has 102,000 on it original. I know this because it still had the factory spark plug wires on it from 1987. They were marked and every little thing I took off of it and replaced said motocraft on it. when I replace the distributor I put it at Tdc on the pully and the rotor pointing a number one installed the new one the same way. The thing that started it all was I went to start the truck one day and all it would do was crank fuel pumps kicked on but it would just crank checked all the fuses all but the IDM resistor was good Cut it out (really hate doing this like to keep every thing original) and wired it together and the truck started took a little but started and ran I would take it to a mechanic But
the mechanics where I live look at it and tell me I dont Know or you got it this far you can do the rest ( that was for a rain water leak into the cab) and cahrge me 500 bucks I could do that my self and keep my money Im really lost on this one. The other day I pulled it back apart figuring I must have put it on exhaust stroke becsue I got it to start right up with the tfi about touching the valve cover took it down the road no power and some pinging if I hit the gas hard. So I removed the distributor again tryed again and had it puffing thro the intake swaped it back and still the same hard to start and way out of range on the pully I dont think its the cam chain only beacuse I pulled the first spark plug and rotated the crank and the marks line up on the tc mark with the piston at top dead center Like I said Im really lost on this one thanks for everyones time and input
map sensor
plugs
wires
cap
rotor
oxygen sensor only has one
intake air sensor
EGR valve
distributor assembly
TFI on the back of the distributor
both fuel pumps in tank and on frame and fuel filter
coolant temp sensor the one for the computer and the one for the gauge
throttle position sensor
air filter
coil
alternator and battery
I pulled the codes and the computer is all over the place from, spout to map sensor. Even replaced the computer, and it still did the same thing. Checked the fuel pressure and it's at 40 psi. when it runs at idle It makes a little pop noise from the exhaust every now and again, but when it's going down the road it gets up and goes, no hesitation, runs great. Let it sit, and it cranks and cranks then starts to fire, then finally starts. I have tried cycling the key and that doesn't help at all. I put a timing light on it and the closer I get to 10 degrees before TDC (with spout connector pulled), the truck runs like crap.The further I get away from any markings on pully the better it runs. The truck has 102,000 on it original. I know this because it still had the factory spark plug wires on it from 1987. They were marked and every little thing I took off of it and replaced said motocraft on it. when I replace the distributor I put it at Tdc on the pully and the rotor pointing a number one installed the new one the same way. The thing that started it all was I went to start the truck one day and all it would do was crank fuel pumps kicked on but it would just crank checked all the fuses all but the IDM resistor was good Cut it out (really hate doing this like to keep every thing original) and wired it together and the truck started took a little but started and ran I would take it to a mechanic But
the mechanics where I live look at it and tell me I dont Know or you got it this far you can do the rest ( that was for a rain water leak into the cab) and cahrge me 500 bucks I could do that my self and keep my money Im really lost on this one. The other day I pulled it back apart figuring I must have put it on exhaust stroke becsue I got it to start right up with the tfi about touching the valve cover took it down the road no power and some pinging if I hit the gas hard. So I removed the distributor again tryed again and had it puffing thro the intake swaped it back and still the same hard to start and way out of range on the pully I dont think its the cam chain only beacuse I pulled the first spark plug and rotated the crank and the marks line up on the tc mark with the piston at top dead center Like I said Im really lost on this one thanks for everyones time and input