Question about 2002 Ford F150 Regular Cab

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My ford f150 wont start idles for a bit than shuts off. year 2003 we know its a fuel problem thats it. any ideas?

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Have a fuel pressure test done on it, then you'll know if it's a weak fuel pump, or the fuel pressure regulator.
If the pressure is low, the fuel pump is the culprit
If it's high, the pressure regulator is bad.

Posted on May 14, 2010

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The fuel pump runs of the oil sender pressure switch upon starting. Once started the relay takes over from the computers command. If it starts then dies out the relay is bad

Posted on May 14, 2010

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1 Answer

2003 F150 with a 4.2. misfiring, wont idle good and loses horsepower. also when it shifts into overdrive


Considering all that you have already done has anyone thought of changing the fuel filter. Is there any chance you've got a bunch of water in your gas tank or some dirty injectors?

Sep 26, 2014 | 2003 Ford F150 Regular Cab

2 Answers

F150 Idles very high and now wont start


You may need check the spark plug. Cleaning or Replacing it could possibly fix the issue. Also clean or replace the battery terminals. Testing a different battery is another option to try.

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My 1991 ford f150 dies after 20 minutes and wont start again for another 20


Could be a bad coil. Sometimes when a 'bad' coil heats up it will fail to work properly. When it fails and shuts the vehicle off, this gives it time to cool back down and resume proper operation. Does it run at normal highway speed during that 20 minutes? If not then it could be a clogged fuel filter. A clogged fuel filter will let the vehicle run at idle but will starve the engine at higher rpm's.

Oct 09, 2009 | 1991 Ford F150

4 Answers

1990 F150 Fuel pump just replaced but wont turn on


Replace the fuel pump relay. And if your truck has dual tanks there's three fuel pumps, one in each tank and another secondary fuel pump.

Aug 21, 2009 | 1990 Ford F150

1 Answer

2003 f150 supercrew 2wd 4.6 romeo has 62000 miles.Pinging noticed when thermostat opens after cold start.Pinging occurs with most throttle positions/loads except full throttle (cant hear it) or idle.EGR...


do not use any fuel additives at all. and only use 87 octane fuel nothing higher. 4.6 and 5.4 ford engines do have a pinging sound especially with a load. but it is normal

Aug 19, 2009 | 2003 Ford F150 Regular Cab

1 Answer

Idle goes up and down


The check engen light should be on if it's a fuel prob. or other senser such as an idle air controll valve. If no light is on, clean the throttle body and add fuel system cleaner.

May 19, 2009 | 2003 Ford F150 Regular Cab

1 Answer

1992 ford f150 Truck shut down at 60mph and now fuel pumps wont


Where does the fuel come from that leaks out when running? If you have dual fuel tanks and one tank is overflowing you will need to check the fuel tank switch in the dash. Ford had a problem with these that caused the fuel pump from one tank to pump fuel to the other tank and cause it to overflow. If this is the case the tank switch is probably defective.
They can get very hot and melt the wires into the back of the switch. Check the switch first.

Feb 17, 2009 | 1990 Ford F150

1 Answer

4.9 liter will idle but wont accelerate have to start with ether


yes checked fuel pressure and replaced the fuel filter, checked the mapp sensor,tested throttle position sensor, has strong spark, 50psi fuel pressure, fresh tune up, runs real rich and rough idle but wont rev up like fuel injectors arent speeding up, also checked exhaust. thanks julius

Oct 09, 2008 | 1990 Ford F150

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