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Is F-150 Still King?
 
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Old 11-02-2009, 06:48 PM
Jfrei Jfrei is offline
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1998 F250 5.8 Dead

Ok my neighbor power washed his 1998 F250 with the 5.8 engine (yes he power washed the engine)

Now it either wont start or if it does it acts like its running on 2 cylinders and dies.

Tried spare coil
new cap and rotor

no change

Personaly I think he should do wires and plugs also.

What other things could it be?

I cant find any vacum leaks, I have pulled and reconnected all the electrical connections that I could find.

He also tried I think its the ICM (or is it the PCM whatever its light grey) on the drivers side fender in an aluminum heat sink with no change.

I'm pretty sure its electrical since it started right after he power washed the engine.

To me it seems like the spark is weak using my spark tester it was a yellow spark where I am used to seeing a good blue spark.

Also I pulled one of his plugs and it was very black and smelled like gas.

Any ideas are welcome
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Old 11-02-2009, 10:43 PM
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Distributor full of water? I agree it is most likely electrical and even more likely to be one of the high voltage parts.. cap, rotor, coil wire, plug wires.
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Old 11-02-2009, 10:51 PM
Beanscoot Beanscoot is offline
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Yeah I'll say it's dead... the 351W died in 1997. None was installed in production vehicles from Ford in 1998 and later.
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Old 11-03-2009, 12:22 AM
Jfrei Jfrei is offline
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Quote:
Originally Posted by Beanscoot View Post
Yeah I'll say it's dead... the 351W died in 1997. None was installed in production vehicles from Ford in 1998 and later.
And you sir would be wrong. If you dont know what your talking about please dont post in this thread. The new SD came out in 1999 so ford did make some 1998 with the 5.8 to fill the gap for the F250 and F350 market would you like the vin?

Now that we have figured out what truck I am looking at. I have swapped out the plugs and wires, the cap and rotor along with an oil change to get the fuel out.

Looking at the book it seems there is some electronics under the rotor in the distrubuter.

What are common problems for no start conditions.

I have everything to deal with most OBDII stuff, but this 1998 is a ******* year and non of my code readers that I have for my diesel trucks will read it.
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Old 11-03-2009, 01:32 PM
BIICrawler BIICrawler is offline
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Does it have a mass air flow sensor. I have seen them go bad on various vehicles after a good wash.

In Beanscoot's defense none of the online parts stores I checked show a 5.8 in a 1998 F250 and none of the parts books show one either. They do however list a 97-98 F250 with 5.4 and 4.6, and they list a 97 F250 HD with a 5.8. Alldata doesn't list it either
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Old 11-03-2009, 01:52 PM
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its probably a late production 97 and the owner calls it a 98. neverless there wont be mass air on that motor as the F250's never got mass air.

i would suspect like conanski said a dizzy full of water. might pull the cap/rotor out and take some air to the dizzy to confirm its dry. Hope the motor wasnt hot when he hit it with the water as thats a good way to crack a head or block.
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Old 11-03-2009, 06:29 PM
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My 96 F250 has MAF sensor.
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Old 11-03-2009, 09:03 PM
Beanscoot Beanscoot is offline
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"And you sir would be wrong. If you dont know what your talking about please dont post in this thread. The new SD came out in 1999 so ford did make some 1998 with the 5.8 to fill the gap for the F250 and F350 market would you like the vin?"

Well we seem to be off to a less than tactful start.

I think I am reasonably knowledgeable about the applications of the 351W/5.8 engines, yet I haven't found any documentation of them in 1998 trucks.

Of course we can't all be right all the time, and I would be happy to learn if in fact, some 1998 trucks were made early in the model year, and if so then this would be interesting news.

And as for "would you like the vin?", yes, that would be great. That would be excellent documentation to show that a 1998 351W/5.8 truck was made. This would be good to build up the knowledge base of the forum.
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Old 11-04-2009, 06:44 PM
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Quote:
Originally Posted by BIICrawler View Post
My 96 F250 has MAF sensor.
what motor and are you the original owner.
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Old 11-04-2009, 09:26 PM
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Quote:
Originally Posted by BIICrawler View Post
My 96 F250 has MAF sensor.
If it's all original it's either under 8500lb GVWR or a California truck.
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Old 11-04-2009, 11:40 PM
BIICrawler BIICrawler is offline
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Quote:
Originally Posted by Kemicalburns View Post
what motor and are you the original owner.
5.8 No I am not the original owner. They show a MAF sensor in the wiring diagrams on Alldata and Mitchell
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Originally Posted by Conanski View Post
If it's all original it's either under 8500lb GVWR or a California truck.
It's under 8500 pounds
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Old 11-05-2009, 12:46 PM
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good to know BII
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Old 11-05-2009, 07:21 PM
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Did you check to see if it had spark at the coil? if it does then see if it has it coming out of the cap.
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