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  #1  
Old 04-26-2016, 07:49 PM
steveisin steveisin is offline
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Default 1998 sat for months, turns but no start, fuel pressure good and spark good

I have a high mileage 1998 with 2.5 motor and 5 speed manual trans. Son went off to college and it has sat for months without being cranked up.. stupid I know.. anyway it turns over like a champ but will not fire up. When I spray starter fluid into the intake it tries to fire up.. so I checked inertia switch and it was good, fuel pressure is good, fuel pump is humming as it should, I pulled the cam position sensor and it is reading .34 so about 340 ohms I guess.. I think that is good but not sure.. Any ideas? I figure that the injectors are not getting power but not sure why that would be. I could pull the timing cover but like I stated it tries to fire up with starter fluid but wont actually run. Any help would be appreciated. Trying to get her running before next week so when my boy returns from school he can use his truck.
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Old 04-27-2016, 06:14 AM
tomw0 tomw0 is offline
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Default Re: 1998 sat for months, turns but no start, fuel pressure good and spark good

Given the quality of fuel that was being offered in N GA recently, I think you may have some fuel deterioration problems. It may have formed globs in the injectors, or just be difficult to get to ignite.
You may be able to borrow a fuel pressure gauge from an auto parts store to check fuel pressure. Most have a valve that allows you so let fuel drain from the system via a tube. I would connect to the rail, check pressure at key ON, as the pump should run for several seconds immediately after going to ON, then shut off. You can drain some fuel into a jar, and check for condition. You should be able to detect vapors if the fuel will do any evaporation. You might find water in the fuel also, as that seems to be much more common than in the past. The methanol added seems to attract moisture from the atmosphere and form droplets in the bottom of the tank.
It might be that if you can get it to 'stumble run' for more than a few seconds by injecting carb cleaner or other fluid into the intake manifold via a vacuum line, that the pump & injectors might start working. The old fuel in the fuel rail and fuel line has been sitting, and may just need to be replaced with some that is fresher from the tank. For that matter if the tank is close to empty, you might energize the pump and let it drain the tank into a gas container, then install new fuel.
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Old 04-27-2016, 06:39 AM
EaOutlaw1969 EaOutlaw1969 is offline
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Default Re: 1998 sat for months, turns but no start, fuel pressure good and spark good

Remove the gas cap and smell it does the fuel smell fresh or does it have a hint of varnish or stale fuel to it?

You can get a shaker siphon from Pepboys or most auto parts places and siphon the fuel from the tank.

http://www.amazon.com/Hopkins-10801-...=sr_1_1&sr=8-1

If the fuel is stale hopefully there is not much of it.

Add new fuel replace the fuel filter and as mentioned in a previous post purge the lines of any of the old fuel.

Remove all the spark plugs and pull a compression test. while the plugs are out if they look fouled replace them.

If the compression is low across all the cylinders add a small amount of transmission fluid or marvel mystery oil in each cylinder and bump crank it over to distribute the oil along the rings and cylinder walls.

let it soak like this for a hour or so. then crank the engine over with rags covering each hole to catch some of the oil as it gets pumped out.

Then recheck the compression, if the compression has recovered clean up the mess and install the new plugs.

Try and start the engine, if the engine starts and runs great.

If not let us know and we can advise you further.
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Old 04-28-2016, 05:47 AM
steveisin steveisin is offline
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Default Re: 1998 sat for months, turns but no start, fuel pressure good and spark good

Thanks for the replies. I will try your suggestions and reply with the results. Much appreciated!
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Old 05-01-2016, 07:06 PM
steveisin steveisin is offline
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Default Re: 1998 sat for months, turns but no start, fuel pressure good and spark good

OMG!!! I found the problem!! I am so freakn mad at my self for being too lazy to get down in there where the crank sensor is and check the wires. This dang crankshaft sensor is in a horrible location; on the passenger side, front of the motor, under the alternator, just above the bottom pulley. I had to partially remove the belt , remove the alternator; 2 bolts and 3 wires, its a very tight squeeze but that dang sensor is tucked away under there and the dang wires were destroyed! It is a real pain to get at and replace so I gonna just replace the sensor while I'm in there along with the connector. $30 total. Nuts!! So just to let the noobs out there know; Yes crank sensor failure will cause the injectors on a ford 2.5 in the Ranger and the B2500 to stop working!!! If you have fuel pressure, a working fuel pump, a working cam sensor and when you spray starter fluid in the intake and it tries to fire up but wont run... Check your crank sensor and wires!!

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BTW I forgot to add that you also have to remove the tensioner pulley assembly because the crankshaft sensor is behind it on the block of the motor. .
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