Hard starting 86 2.9
Thread Starter
|
More Turbo
Joined: Sep 2007
Posts: 552
Likes: 9
Hard starting 86 2.9
I have 86 ranger 4x4 automatic truck runs super has 4.10 gears real good low end and decent fuel milage about 22mpg. Heres my problem. i go out in the morning to start it and it will crank over all day long and not start unless i give her about a 1/2 pedal throttle then she will fire right up and you got to keep her rpms up about 30 seconds or so or it will stall. so i keep my foot on the gas and the other on the brake while putting it in gear to keep from stalling out. once you go a mile or so its fine.
Ive swapped out IAC, and tps with junkyard parts no change other than a little lower idle probably about 600 rpm at idle warm. changed plugs, wires, cap, rotar. put on a new module on distributor. new fuel pump in tank and frame. new frame filter. about the only thing i didnt tinker with is injectors and pressure regulator. could that be it? Thanks guys
Ive swapped out IAC, and tps with junkyard parts no change other than a little lower idle probably about 600 rpm at idle warm. changed plugs, wires, cap, rotar. put on a new module on distributor. new fuel pump in tank and frame. new frame filter. about the only thing i didnt tinker with is injectors and pressure regulator. could that be it? Thanks guys
Logistics Pro
Joined: Jan 2002
Posts: 4,907
Likes: 39
From: suburban atlanta
You might want to check your ECT - coolant temp sensor. It tells the computer that your engine is cold, and needs a little extra fuel along with a bumped up idle. The ACT- air temp sensor could also be off.
Neither will throw a code, to my knowledge, as the computer has nothing to reference against.
If you never get a fast idle when the engine is cold, it could be the sensors.
tom
Neither will throw a code, to my knowledge, as the computer has nothing to reference against.
If you never get a fast idle when the engine is cold, it could be the sensors.
tom
Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
I agree with tom, it's probably the ECT.
Take a look where the upper heater hose connects to the engine. The ECT is right there.
Looks like a real PITA to get to.
If you connect an ohm meter resistance should go from very high to very low (or is it versy vicey?) as the engine warms up.
Here you go: http://www.kemparts.com/TechTalk/tt13.asp
Take a look where the upper heater hose connects to the engine. The ECT is right there.
Looks like a real PITA to get to.
If you connect an ohm meter resistance should go from very high to very low (or is it versy vicey?) as the engine warms up.
Here you go: http://www.kemparts.com/TechTalk/tt13.asp
