What would cause both fuel pumps to stop working after a 1990 Ford F150 truck warms up?
Fuel pump relay, maybe
Remove the ingnition mudule located on the driver's side fender, no on top of the fender skirt, on the fender near the firewall. I think it's a 10mm. It looks like a black box(1 1/2" x 4") mounted in an aluminum heat finned casing. OR it is attached to the bottom of your distributor 9(same physical description minus the aluminum piece). Now that you've found it and taken it off, take it to your local autozone and have tested at least 8 times in order to heat it up to normal operating temp. If it fails, BINGO! You answered the million dollar question that plagues and drives Ford owners insane trying to figure it out. You see, this module when it decides to comletely fail will stop your truck from firing and will stop your fuel pumps from pumping, leaving you dead. NO spark, No fuel.
CHECK YOUR RELAYS.......POWER AND FUEL PUMP RELAYS, ONE OR THE OTHER
CAN OPEN WHEN HOT RESULTING IN FUEL PUMP SHUTDOWN:
Tracker 93 will not start got spark fuel pump pumps will start if it sits for about 3 weeks but will die once it warms up then it wont start for weeks?
What would cause a 96 Chevy truck with the 4.3 liter to die after starting then after it warms a little run but still idle a little rough?
is this a diesel truck? does this engine have a turbo? if it is a diesel with a turbo,it will blow white smoke when cold till it warms up if it continues to blow smoke check your air filter other reason if it continues to blow smoke is the turbo is about to crater get it checked also check engine oil for coolant loss if coolant is leaking into cylanders,this will cause white smoke
What makes my s10 blazer run until it warms up and then dies but starts after sitting for a little while?
If a 1995 Geo Prism squeals when you turn the wheels hard on starting but not after it warms up what could cause that?
The gulf stream warms Western Europe. London, England, for example, is on the same latitude as Canada. However, it seldom snows in London, while Canada is snowbound every winter. The Gulf Stream pumps warm water from the Gulf of Mexico and the Caribbean all the way to the English and Irish coast, giving it a somewhat warmer climate.
With warmth, comes expansion. Could possibly be that after the engine warms to proper operating temperature than an electrical connection (which may not be tightened securely enough) becomes dis-connected. Once the engine cools, that connection contracts, thereby making contact once again. Finding this intermittent problem is like looking for a needle in a haystack. You will need to check every single electrical connection until the one that is loose is found. Remote possibility could also…
Why would you have to keep pumping the gas to keep a 1990 Dodge Dakota V6 running once it warms up but it runs great when cold?
i had this happen to myself before. try this, after the engine warms up and then stalls out try to restart it but have another person lay underneath the truck with a rubber mallett and hit the bottom of the gas tank a few times while you are cranking the engine over, if it starts up that will tell you right away that you have a bad fuel filter. also you might want to have…