7.3 powerstroke cranking issue

BigdaddyDupree · 02-27-2012, 08:53 PM

My truck is a 99 f350, it has been running flawless accept for the last fe weeks its been having cranking issues. Sometimes it spins over flawless and fires right off. Other times it spins over very slow, not fast enough to crank up, but if i let off the key and hit it again then it cranks perfect. and its intermittent so its very hard to track down. New batteries, so i either have it narrowed down too the cables or the starter. but how do i narrow it down to which?

BigdaddyDupree · 02-28-2012, 08:51 AM

Anybody have ideas?

KRYPTONITE · 02-28-2012, 09:04 AM

Check to see how much Volts. you have going to the starter

KRYPTONITE · 02-28-2012, 09:05 AM

Might be a Bad connection, Ground or power

CHEVYMAN434 · 02-28-2012, 10:10 AM

MIne does that sometime too.Sometimes i jump in it and it spins over to slow for it to crank.Its still spinnin good but just not quit fast enough.I have found that its because the battery cables are loose.They dont feel loose but if you put a pair of channel locks on them they will turn just a little.I think they just get corrosion on them and the little turn lets it get all the juice...

Bradleyrj · 02-28-2012, 10:39 AM

Can you test continuity through a cable? Test at each end to make sure the cables are getting the power to the starter?

cliff-1972 · 02-29-2012, 03:56 PM

If you need a starter I have one

billy · 04-24-2012, 08:43 PM

try starting fluid it will crank wright up that means the glow plug is bad that what mine does thats the mean problem with the diesel engine

blueyed tuner · 04-25-2012, 10:17 AM

May want to try a starter solenoid. On my 7.3 onetime, I replaced the batteries, the cables, then the starter. Come to find out, it was the solenoid on the fenderwell. The get pitted and burnt over time. Its about a 12 dollar part that in the long run I paid about 800 dollars chasing. Its always the simple stuff that bites you. Good Luck.

04ctd · 04-25-2012, 11:55 AM

i take a wire wheel on a drill and clean up battery ends.

I got a Fluke DVM if you need it.

if the crimp is loose on some wires, the copper can turn green inside the connector, and not make connection, spent few hours chasing that one last week. wire only had connectivity if you jammed the DVM lead down in the wire

outlawts · 04-25-2012, 04:23 PM

GET A CHEVY LOL

billy · 04-25-2012, 10:22 PM

Quote:

Originally Posted by outlawts

GET A CHEVY LOL

chevy junk LOL

02-27-2012, 08:53 PM	#1
BigdaddyDupree Senior Member Join Date: Jul 2008 Location: MACEDONIA Posts: 4,967	7.3 powerstroke cranking issue My truck is a 99 f350, it has been running flawless accept for the last fe weeks its been having cranking issues. Sometimes it spins over flawless and fires right off. Other times it spins over very slow, not fast enough to crank up, but if i let off the key and hit it again then it cranks perfect. and its intermittent so its very hard to track down. New batteries, so i either have it narrowed down too the cables or the starter. but how do i narrow it down to which? __________________ . What you wanna do?

02-28-2012, 08:51 AM	#2
BigdaddyDupree Senior Member Join Date: Jul 2008 Location: MACEDONIA Posts: 4,967	Anybody have ideas? __________________ . What you wanna do?

02-28-2012, 09:04 AM	#3
KRYPTONITE Senior Member Join Date: Apr 2008 Posts: 3,484	Check to see how much Volts. you have going to the starter __________________ *The Hired HIT MAN*

02-28-2012, 09:05 AM	#4
KRYPTONITE Senior Member Join Date: Apr 2008 Posts: 3,484	Might be a Bad connection, Ground or power __________________ *The Hired HIT MAN*

02-28-2012, 10:39 AM	#6
Bradleyrj Senior Member Join Date: May 2008 Location: Myrtle Beach Posts: 2,347	Can you test continuity through a cable? Test at each end to make sure the cables are getting the power to the starter? __________________

02-28-2012, 10:10 AM	#5
CHEVYMAN434 Senior Member Join Date: Nov 2009 Location: pineville sc Posts: 671	MIne does that sometime too.Sometimes i jump in it and it spins over to slow for it to crank.Its still spinnin good but just not quit fast enough.I have found that its because the battery cables are loose.They dont feel loose but if you put a pair of channel locks on them they will turn just a little.I think they just get corrosion on them and the little turn lets it get all the juice...

02-29-2012, 03:56 PM	#7
cliff-1972 Senior Member Join Date: Feb 2011 Location: Moncks Corner,S.C Posts: 292	If you need a starter I have one __________________ 1964 Impala 468BBC,T350 transbrake,4.30 9",10 point and 10.5 M/T's 1996 F250 4X4 12V Cummins,compound turbo 63mm over 75mm,cam,520cc pump,full billet 4R100 563hp&936ft.lbs w/a bad fuel pump and on a dynojet...just an old hunting truck

04-24-2012, 08:43 PM	#8
billy Senior Member Join Date: Mar 2012 Location: summerville Posts: 53	try starting fluid it will crank wright up that means the glow plug is bad that what mine does thats the mean problem with the diesel engine

04-25-2012, 10:17 AM	#9
blueyed tuner Senior Member Join Date: Nov 2011 Location: Summerville SC Posts: 214	May want to try a starter solenoid. On my 7.3 onetime, I replaced the batteries, the cables, then the starter. Come to find out, it was the solenoid on the fenderwell. The get pitted and burnt over time. Its about a 12 dollar part that in the long run I paid about 800 dollars chasing. Its always the simple stuff that bites you. Good Luck. __________________

04-25-2012, 11:55 AM	#10
04ctd Senior Member Join Date: Aug 2009 Location: Ladson SC Posts: 4,388	i take a wire wheel on a drill and clean up battery ends. I got a Fluke DVM if you need it. if the crimp is loose on some wires, the copper can turn green inside the connector, and not make connection, spent few hours chasing that one last week. wire only had connectivity if you jammed the DVM lead down in the wire __________________ 1 Timothy 3:16 16 And without controversy great is the mystery of godliness: God was manifested in the flesh, Justified in the Spirit, Seen by angels, Preached among the Gentiles, Believed on in the world, Received up in glory.

04-25-2012, 04:23 PM	#11
outlawts Senior Member Join Date: Mar 2010 Posts: 402	GET A CHEVY LOL