No start up fuel
Thread Starter
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Freshman User
Joined: Dec 2003
Posts: 26
Likes: 0
From: BC Canada
No start up fuel
Hi,
We have a 1990 F150 bush truck with an inline six that will not start cold. If we pull the intake hose and squirt a couple of tablespoons of fuel in, it fires right up and continues to run albeit slightly rough for about 5 minutes. While this is happening the check engine light is on. As soon as the CEL goes out the engine purrs. No starting problems after that as long as there is some heat left in the engine. Didn't get a chance to try and code it. Truck is very remote and was hoping I could take some likely parts in to fix next trip to the bush. Any ideas?
Thanks
We have a 1990 F150 bush truck with an inline six that will not start cold. If we pull the intake hose and squirt a couple of tablespoons of fuel in, it fires right up and continues to run albeit slightly rough for about 5 minutes. While this is happening the check engine light is on. As soon as the CEL goes out the engine purrs. No starting problems after that as long as there is some heat left in the engine. Didn't get a chance to try and code it. Truck is very remote and was hoping I could take some likely parts in to fix next trip to the bush. Any ideas?
Thanks
Thread Starter
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Freshman User
Joined: Dec 2003
Posts: 26
Likes: 0
From: BC Canada
I have not checked for codes yet. Plugs are basically new. We put about 500 km/ 300 miles a year on it. Fluid and filter changes are the only maintenance. Except for the intermittent start problem, the truck usually starts first blade and is very smooth. I did change the ignition module recently also.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Sounds like it may be a bad ECT sensor but something keeps telling me your EEC Computer is on the way out. Maybe it sounds like something I have heard before and it turned out to be the computer.
I know they are very durable very seldom go bad before someone else says that.
Does your fuel pumps run all the time the key is on and the engine will not start?
If they do then it points to a bad computer.
Can you pull the codes when it will not start, if not it would also point to a bad computer.
I know they are very durable very seldom go bad before someone else says that.
Does your fuel pumps run all the time the key is on and the engine will not start?
If they do then it points to a bad computer.
Can you pull the codes when it will not start, if not it would also point to a bad computer.
Thread Starter
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Freshman User
Joined: Dec 2003
Posts: 26
Likes: 0
From: BC Canada
Yes, the fuel pump runs all the time key is on. I will attempt to pull the codes next time I get to the truck. I was hoping for an easy diagnosis seeing it runs so well after a squirt of fuel in the intake. There must be a relay or valve that controls start up fuel to the injectors and once running switches to normal operation. Or I guess the computer that controls such function may have lost that ability. Guess I really need to get the codes.
