Sohc ..crank Crank Crank....

[bigtime57]

I have a 99 EB SOHC that is driving me nuts. . . I started out with the rough idle and CEL coming on (lean bank1,bank2) and finally broke down and did the 00M12 fix and help that problem out greatly and wasnt a bad evenings work either thanks to this forum and during this fix I cleaned my IAC and MAF next morning started and ran fine. . as for the running fine and rough idle that part is pretty much fixed but I cannont get this thing to start . . You can crank and crank and its like no gas . . but you can touch the peddle and it fires right up. . .my wife drives the explorer most of the time and she is about to kill me over having to crank it so much.. .any suggestions??.....I thought I had fixed the problem with the starting when I fixed the other but my wife let me know last night. . .I got a few "honeydew" jobs to do on the explorer to make her happy . . please help

 

[Rodeo Joe]

I would replace the IAC. Cleaning it doesn't always fix the problem.

Joe

 

[Blee1099]

Are you getting enough fuel pressure? Try hooking up a fuel pressure guage to the valve on the fuel rail. I suspect your not getting enough fuel.. A dirty fuel filter can cause that.

 

[bigtime57]

how many lbs pressure is the correct amount?

 

[01sportrac]

Review all the elbows in the PCV system to

ensure that there are not any cracks. Even small cracks can cause a problem. Mine was similar and found one of the elbows with hairline cracks in it. Replaced and all problems(stalling, idle jumping lean bank 1 and 2) all cleared up and now runs great.

My wife's Expedition had issued with starting. Replaced fuel filter and issue resolved.

Good Luck

 

[ctm31533]

Have you tested the crankshaft positioning sensor. Mine did that same thing. It would turn over, turn over and turn over. Replaced the sensor and cranked right up.

 

[Eneurb]

If the check engine light stays lit while the engine is cranking, you are not getting a crankshaft position sensor signal.

 

[bigtime57]

so am i thinking in the wrong direction by thinking it might be the IAC or MAF? but more like a fuel filter, crankshaft sensor . . ..

 

[TPLYNCH]

Based on the fact it will start when you give it gas, I'd rule out the crankshaft sensor. It's a fuel/air delivery problem.

 

[bigtime57]

I got a chance last night when my wife got home in the explorer to check to see if the CEL stayed on and it doesnt....i did notice that it turns over 10-15 times before starting even hot. . . .I also tried the turning the key on three times and then trying to start . . still did the same thing. . is 30-40 psi the normal fuel pressure for my SOHC? Im gonna check that tonight and replace the IAC and thinking about running some seafoam. . never tried it but seems to be good stuff. . and with 74000 its probably due some cleaning