Question about Ford Cars & Trucks
I have a 1991 Ford Econoline. Recently had the dual tank relay switche replaced at Ford. Now the van has difficulty starting in the morning after sitting overnight. She cranks but won't catch. Once started, it's good the rest of the day. What's causing it not to start after sitting overnight?
I think that if you have a carby system that I would be checking the auto choke operation. IF efi I would be running fault codes looking for sensor problems in the air intake area. Check the duel switch and ensure that there is not possibility of an air leak allowing fuel to drain back in the system as replacing the unit appears to be the start of your problem
Posted on Feb 09, 2014
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Posted on Jan 02, 2017
I suspect the fuel pump has stopped working, check the fuel pressure or listen to the noise it makes by taking off the gas cap and listening for a humming noise when the key is turned on, this will stop after a few seconds.
Posted on Nov 07, 2008
my dad used to say you need two things to start a motor; gas and fire. Check these and make sure they are both good. You have to go through the steps from there. Could be a fuel filter. could be bad plugs. etc. etc... Hope it helps.
Posted on Mar 21, 2009
It is either the speed sensor, the wireing in between ot the speedometer module it self. The sensor sends pulse train signal to the speedometer module and there it drives the speedometer and is divided in frequency by about 7 and feed to the computer and the cruise control. When the signal drops the Engine management computer thinks the speed is real slow and raises the transmission pressure.
In the one I had it was a cold solder jooint on the bacjk of the speedometer module itself but this was the divided output and the speedometer itself still worked. The easyest part would be the sensor that mounts on the rear axile I believe and should cost less than 30.00 dollars. If not that thebn it's the wiring or the speedometer module electronics..
Posted on Mar 25, 2009
hello ralph...check the coolant temp sensor. It acts as a choke to richen fuel mixture when cold. If it doesn't work correctly, hard starting will occur. Once engine reaches operating temp, the problem is usually non-existent. also....
Worn spark plugs.
Fouled spark plugs.
Worn distributor cap and rotor.
Old ignition wires.
Low engine coolant level.
Faulty MAP sensor...any of these will effect cold starting....
Good luck...i hope this helps.
Posted on May 17, 2009
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