2000 cold start issue
- Thread starter Short Bus
- Start date
LPOP feeds the HPOP Res, where the HPOP gets oil from.
psduser1
Well-known member
The rez should have enough oil to fire the injectors a couple of times, "ish". Of course, while the engine is rolling over, the lpop is building pressure and refilling the rez. Barring a large leak, of course.
Thats what i thought, I figured it would at least try to fire off since the res is 75% or better full. but there's no smoke no nothing. I am going to pull it into the shop here shortly and put an oil pressure gauge down by teh oil cooler and also hook up a fuel pressure gauge to the pass side head. I may also swap in an IPR just maybe that old ipr is getting sticky or the coil is getting weak.
Dirtclod
New member
That's what mine was doing except it acted like no compression. I'll call the guy and find out what exactly was wrong
Installed gauges on the truck yesterday. there's 50ish psi of oil at the oil cooler when cranking or idling cold. fuel pressure is good... Swapped in a brand new ipr i had laying in the tool box, we have icp now but still no cold start. As soon as i hooked up jumper cables and cycled the glow plugs again it fired right off. would the pcm or idm be cutting out due to low voltage? If so how would one go about narrowing down which one?
Dirtclod
New member
I'm not an mechanic by any means,but my experience tells me you need 14.5 volts to crank. Gloplugs take up over 2. Search this forum for a thread on batteries. Some guy had a good write up. I keep a trickle charger on mine and plug it often to charge.
Correct, 10.5v or less and it won't even fire the injectors.
this thing is going to get blown up. wouldnt start, walk away for 5 minutes crank again and it starts..... disconnected batteries, tested... both passed. came back 5 minutes later no start, hooked up jumpers fired right up. truck dies and wont start 5 times, 6th it fires up and runs great. cables dont look bad, connections are tight, checked battery grounds on engine, engine to cab, etc. all looks good. just random ****ing no starts. Hit it with ether or jumpers and it fires right up. wtf.
Do you have a second set of good batteries you can swap in to try?
Sent from the pocket porn device.
I shouldn't have said jumpers always start it, only seems to help. It was so dead once today that it barely cranked came back later relays were clicking in and out it was so low on voltage and it started. Let it run or charge for 30-45 min and won't start the next 3 tries. Ether always starts it, just don't know what the hell is going on. Almost tempted to find a used pcm and idm.
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Bustedknuckles
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Whats the scanner show for rpm while its cranking? Could be a bad crank sensor and the pcm is seeing enough rpm to start firing. I've seen it happen
lincolnlocker
Well-known member
what is voltage after 30 min of idle? if it is starting more often with jumpers hooked up then i woukd dare say its partially a voltage issue.. all connections are clean at batteries and starter?
please stop using ether
live life full throttle
god bless america and the farmer who feeds your fat ass
please stop using ether
live life full throttle
god bless america and the farmer who feeds your fat ass
Dirtclod
New member
Could IDM wiring harness have shorts on it?
Dirtclod
New member
In it? Lol!
swapped in a new ford cps because it did have an intermittent cps fault code. I think the rpm while cranking is 140-150 iirc. Once the glow plugs kick off the system voltage is 13.5-14 depending on the rpm. With the glow plugs cycling engine running the voltage is 12-12.5. Could the starter be the issue, drawing too many amps? There was a time yesterday teh voltage dipped low enough my scanner lost connection while cranking. That was when i came back 5 minutes later and it fired right up after cycling the gp's.
