I am having trouble starting my truck, but once it starts-runs good. It doesn't happen every time I start the truck-but most of the time. It turns over, but takes a few seconds to start.I've done a tuneup, fuel filter, new fuel pump. Any ideas????

 

I've heard that the ECT sensor is the most common cause of slow starting problems. It seemed to help mine start faster.

Travis
Flatheadv8

*87 ranger STX
2.9, K&N cone, Magnaflow, MSD, Flex-a-lite electric fan
31x10.50 BFG Mud terrains
15x8 Eagle 117's
6" skyjacker
Sikkens silver metallic
Ford grillgaurd, rollbar (off), tubular rear bumper all powdercoated gloss black
Delta crossbed toolbox
Clarion deck/rears, alpine fronts,
Rocford Fosgate-punch 100, punch 250,and 10"XLC
Hella FF100 fog lights

 

 

Where and what is the ECT sensor? What are the symptoms when they go bad? I have done EVERYTHING i can think of to fix my Bronco II and it still stalls out and wont run. It is getting plenty of fuel and would not start with either. Replaced: Fuel filter, Module, Pick up coil, Coil, Cap, Rotor, Wires, Etc.

 

The ECT is the coolant temperature sensor. On a 2.9 it is located near the thermostat. Make sure you replace the one that has two wires, the one that has a single wire is for the gauge. The sensor have a specific resistance at a specific temperature, you can test this with an ohm meter.

 

My old ranger (89 4x4, 2.9) always started hard...and over a period of two years I replaced everything I could think of ...then finally gave up and decided to live with it. A month later I sold the truck. Good luck.

1995 F-150 XLT 4x4
300 I6
5" Superlift
33x12.50 Wild Country
Cab Visor
Flush Fiberglass bedcover
steps, etc.

 

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Check the temperature sending sensor. A defective one will make the pcu think your overheating and stop the ignition.Youtube has several examples.
On my 89 ranger 2.3l it is under the intake manifold. I removed the alternator for ease of access and moved wiring down to get it out with a 19mm 12 point deep socket wrench. The plug should have a 5v and ground and the sensor should read between about .5 to 3.0 at 200k ohms in cold and hot water. Mine had a high reading od 32 at room temp and was bad. Hot water makes the ohms resistance drop and cold makes it rise. Motorcraft sending unit is about $50 at Oreiles.Hope this helps.

 

You are replying to a post from 20 years ago. But perhaps your advice finally got it to start easier.