Question about 1987 Ford Ranger

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1987 ranger 2.9 fuel injected new dis. cap coil computer fuel pump truck runs fine when it warms up but right after it starts when its cold it runs and stalls it still has fuel pressure when it stalls and it starts right back up

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Check egr

Posted on Jul 12, 2009

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3 Answers

Does an ignition control module have anything to do with fuel pump functioning?


1987 rangers use a device called a TFI module to control ign. timing , this merely triggers a std. coil to fire the center port of distributor cap , this device only controls the coil to fire but does send a pulse for timing back to ecu this sets the base pulse for fuel injection , but its also affected by manifold Air flow and exhaust O2 amounts (closed loop) , but engine should run in base mode (open loop) fuel timing (but not well) , fuel pump relay is enabled to run via ECU output , Now your year ranger had a tech bulletin out on fuel pumps , seems they had a problem getting them to work after a fuel filter was replaced , something about a false backpressure , no if you have no/low fuel pressure then id look at fuel pump power 1st then fuel pump itself assuming you've already tried a new filter of course

Jun 14, 2015 | 1987 Ford Ranger

2 Answers

I have a 1987 ranger 2.3 EFI and sometimes it will not start when it's cold. after it warms up outside it starts. When it does start it runs great. It always starts when warm. some times it will


Timing belt being off one tooth will not cause this problem but rather loss of power and hard starting all the time,

in the cold it will not start, the engine will spin but wont fire is this correct?

There are many things that can cause this, a little testing will be needed, the first thing that comes to mind with the ford and cold weather is the coolant temp sensor, it give computer a false reading and can cause hard starting or even no start, a scan tool would be helpful to see what temp it is give computer.
The best way to narrow this down to to check for spark when it wont start, a weak coil in cold weather will cause this problem or bad coil wire to cap, but if you can see if it has spark and let me know,
another test is to check fuel pressure, to see if it is getting fuel, and the fuelpump relay,

Let me know if it has spark or fuel when is does not start, good day

Oct 01, 2012 | 2002 Ford Ranger Regular Cab

3 Answers

Son-in-law did a tune up. Plugs, plug wires, rotor, distrbuter cap, pvc valve and all the filters. He change the oil also. The fuel pump was the original problem. He changed the pump and fuel filter. The...


Check for an air leak in the fuel system. It sounds like the son-in -law did good work but missed an air leak somewhere. The system is not providing enough fuel to the engine. The other possibility is that you are pulling a vacuum on the fuel tank. They have to be vented either through the cap or through the canister. First take the fuel cap off and see if the truck will run. If it does put the fuel cap back on and pull the hose off the canister and try to run the truck. If it runs it was the canister.

Mar 18, 2010 | 1995 Dodge Caravan

1 Answer

1980 VW rabbit, manual/fuel injection: I am


it starts from cold because the auto choke is on ,allowing a richer mixture ,try removing the sender unit in the tank and seeing if the connection from the pump to the outlet connection is ok or leaking causing a loss of fuel pressure

Aug 02, 2009 | 1983 Volkswagen Rabbit Pickup

1 Answer

Loss of fuel pressure on 1988 ford ranger


Some of these trucks had 2 fuel pumps. One in tank other in frame rail. Possible bad/weak pump.

Jul 27, 2009 | 1988 Ford Ranger

1 Answer

87 ford ranger wont start without starting fluid


It sounds like you aren't getting fuel out of the cold start injector... remove the injector when engine is cold and switch on ignition... you should get a fine spray pattern for a few seconds... if not then there is probably a problem with the cold start circuit (Temp sensor fault), or the injector is faulty. pull electrical connectors one at a time and look for corrosion... Hope this helps...;-)

Apr 15, 2009 | 1987 Ford Ranger

1 Answer

S10 pickup after warming up truck starts missing


You might have computer problems.

Does the check engine light come on when it starts to miss?


Nov 30, 2008 | 1987 Chevrolet S-10 Pickup

1 Answer

1987 pontiac firebird trans am


I HAD SAME PROBLEM MY 87BIRD I HAD TO REMOVE THE FUELTANK AND REMOVE THE SOCKSCREEN OFF THE ELEC.FUELPUMP THE OTHER 87BIRD I HAD TO EXTEND THE HOSE TO BOTTOM OF TANK.ONE I CHANGED FROM FUEL-INJECTION TO 4-BB Q-JET ONE I LEFT ELEC.PUMP IN JUST REMOVED SOCK STILL WILL WORK.MY PROBLEM WAS SAME IT WOULD START AND IDLE FINE,IT WAS WHEN I TOOK IT DOWN THE ROAD IT WOULD DIE ABOUT A BLOCK AWAY.BELIEVE ME I WENT THRU EVERYTHING ALSO.HOPE TO OF HELPED OUT

Jun 07, 2008 | 1987 Pontiac Firebird

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