Cold blooded 302
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Joined: Nov 2009
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From: Chicago area
There are two coolant temp sensors on Ford FI engines. One sends a reading to your temp guage or light as the case may be but the other tell the ECC the engines temp and then the ECC will adjust it's settings as required. My guess is that that sensor is bad. It's not expensive and it's not hard to replace.
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From: Denver Metro Area, CO
The sender that feeds the dash gauge has a single wire to it - most likely red/white-stripe or white/red-stripe I forget which.
The sender is a small, brass thing smaller than your thumb and I think is screwed into the intake manifold
The one connected to the computer is located on the thermostat outlet and has at least two wires going to it.
The sender is a small, brass thing smaller than your thumb and I think is screwed into the intake manifold
The one connected to the computer is located on the thermostat outlet and has at least two wires going to it.
Moderator
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
You might also pull the computer codes to see what it thinks might be happening:
Fuel Injection Technical Library » How To Run a Self-Test
Ford Ranger/Bronco II EEC-IV Testing
Fuel Injection Technical Library » How To Run a Self-Test
Ford Ranger/Bronco II EEC-IV Testing
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
You might also pull the computer codes to see what it thinks might be happening:
Fuel Injection Technical Library » How To Run a Self-Test
Ford Ranger/Bronco II EEC-IV Testing
Fuel Injection Technical Library » How To Run a Self-Test
Ford Ranger/Bronco II EEC-IV Testing
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Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
I tend to agree, there is zero sense in throwing parts at a problem that *might* solve the problem.
It's a computer-controlled engine and the computer can tell you what it is having problems with, inquiring with it is a logical first step.
It's a computer-controlled engine and the computer can tell you what it is having problems with, inquiring with it is a logical first step.
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Joined: Oct 2010
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Back again. No codes stored in koeo or koer. Went out and started it ran fine as long didn't hit gas. Died when I gave it gas. Held gas at half throttle until it cleared up and then ran perfect. Engine wasn't warm even. Any ideas?
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Joined: Oct 2010
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Back again. Went out and started truck and died when I agve it gas. Got it started again and held steady throttle about half until it cleaned itself out and then it ran fine. What is going on? Could a injector be leaking by? Had all new injectors about a year ago. Bad plugs? Will put in new plugs when I can. Any ideas?
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1987 - 1996 F150 & Larger F-Series Trucks
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