1990 7.3l IDI long cranking
 

First time here and I felt like it would be easier to put my issue out in the open instead of hoping to find a relating issue that would fix mine. Recently bought a 90 f250 with a 7.3 and it was just having a long crank to get it started after sitting for more than 6 hours, replaced my fuel filter which looked like the inside of a fish tank filter, and replaced my fuel pump since it was just leaking and I could easily move the arm once it was taken out. Too me it just seems as though its not cranking over fast enough but how can I tell? Getting it to start in the mornings Ill gave to crank for a good 20 seconds before there are signs of life in it. My tach reads under 200rpm while I'm cranking as well.

rpm's sound good ..... your experiencing air in the fuel .... before starting in the morning pull your fuel/water separator..... if its not plum full and spilling every where your fuel is draining back because there is air getting into the system ...

I pulled the hard line from the Injection Pump from the Filter/water separator out and installed a Braided Teflon line .... problem solved .....
also look for signs of fuel leaking @ Injection pump .... .... I suggest getting a can of non-chlorinated brake clean and cleaning the IP (injection pump) ... then let dry and run engine for a bit around town ... then look for signs of fuel ... if non found ... its in the fuel lines or your return lines ( little plastic things on to of the injectors ) might have bad O-rings under them ... get a new return line set ... usually about $45 or so.... day project ... if you need to do them ... use plenty of oil on the O-rings, and I use a cigar trimmer to cut the lines ... nice and clean and straight ...... keep us posted .. much more advise if non of this helps ...... :humm:

thanks for the reply, I'll go ahead and check those out, it does look like their is some fuel in the valley. I went out to start it this morning and for the life of me there was nothing there, my WTS light would stay on for a full 8 seconds regardless of what I did, finally decided to plug in the block heater, and after about 5 minutes with it, it puffed to life with a of smoke. Also smelled like a burning wire somewhere, I looked under the hood and believe it was coming from the GPR, just replaced it the other week.

could have a short in the GP wiring in its self .... lotts of power goes into a GP ... I would carefully look over all of the wiring to the controller before going into too much repairs .... bad wiring and its all over with .... but u know that I'm sure ....... :argh: been there done that :ouch:

started replacing the seals and line because well there were no o rings on the injectors :w2: and I got in turned the key and started like i've never heard before but pissed fuel of off the passenger front two injectors like the line wasn't on right



fixed one injector, the tee wasn't fully pressed, but the metal fitting on the front was split down the side now its just pouring out so im gonna have to figure something out for that..:argh:

you will need to buy a new one or find one in junk yard .... lines and such ... only like ..... 20lb/ft i beleive ... just snug not real tight :td:

Ill have to try this on mine. Does the same thing but my GP don't come on at all, need to bypass it on my '93 7.3. Going to hook up a switch, but the electrical smell could also have been the cable going to the starter. I used to crank until it fired up but one time my starter actually caught fire, so now I do it in short bursts, about an 8 count cranking and 3-4count resting. Takes a few cycles of this for me to get my truck started. Come winter it gets to be pretty hard to get her going, about7-10 cycles of my start procedure. :td:

yeah I had cracked fuel lines from the tank switch ..... that was only the begining of my real issues though .... this weekend I'm putting the cylinder heads back on ... HG's and ported and polished the heads :rocking:.... bitch is gonna scream now :choochoo: :yeah: :jump: :tu: :rocking:

The glow plug system on the early 7.3 is simple when I got my 92 four door bronco it had a lot of the same glow plug problems, after replacing the glow plug controller,glow plug,the silonoid, I did some looking and found that my main harness for glow plugs was melted,so my glow plugs were get half of the current to the glow plugs I fixed the plug end(ford does not sell the plug end) and I can start it in the middle of winter with in 2 to 3 cycles max,and when changing return lines make sure get the right ones cuz earlier model dif. From newer 7.3 idi

i have a 1990 E350 ambulance kind, has whole vinal all around back a/c front rear.. but any way , 124,000. miles. 7.3 no turbo
and trans only has 2nd n 3rd. helps a little to put in 1st at a stop then shift into drive.
just shut it off and parked over nite next morning o/d button on dash, was on and van will not shift ,, ???? just lost never had that happen ? and was 1/2 qt fluid low,. dont smell burnt, o/d lite will not go out,, dont have any manual around of any kind,, Thanks Chiper:s::s::s::s::s: