cowboy_dan 10-31-2007, 01:27 AM In the morning when I leave for work, it is slow to rev up until it hits about the 2krpm mark. Then it revs fine. I know it's not my imagination, it's much too noticeable to be that.
It's done this since I've had it.
The motor has to cool off completely.
Overnight temps are around 45-50, about 50 when I leave.
It get worse as the weather gets colder.
Once I can just start to feel heat out of the vents is when it starts to improve. Generally about 3-7 minutes.
By 10 minutes, in all but really cold weather, it is running fine. In really cold weather (0-10 deg f) it takes about 15 min.
It does it in all programs, and it did it before I did anything other than change the oil & air filter.
Is this programmed to happen, or do I have a temp sensor on the way out?
StrokerTurbo7.3 10-31-2007, 01:53 AM I kind of have the same problem. I was thinking it was just because it was cold. I hope thats all it is lol
bluetech151 10-31-2007, 01:58 AM changing your oil to the 30 sae will help
racehauler 10-31-2007, 03:29 AM What you are noticing is the EBPV closing. When it restricts the exhaust to warm the engine up it will rob some power. This is normal operation.
You can disable it if you want but warm up time will be longer.
genuineford 10-31-2007, 03:41 AM ^^^ what he said
Strictly Diesel 10-31-2007, 04:21 AM There's more to it than that. Programming is adjusted for cold operation, so the engine does run differently. The EBV is also part of it.
Wackerjr 10-31-2007, 04:35 AM you have to remember as well your injectors are fired by oil.........
cold thick oil is harder to pump than warm thin oil.....hence the better running when heat starts out the vents.
StrokerTurbo7.3 10-31-2007, 12:59 PM so nothing serious.
sweet
Cat_Rebel 10-31-2007, 01:31 PM What you are noticing is the EBPV closing. When it restricts the exhaust to warm the engine up it will rob some power. This is normal operation.
You can disable it if you want but warm up time will be longer.
I'd unplug it but if it's still sticking I'd get the delete kit. Sometimes those things get old & will get stuck in the partly closed position. In other words you may as well be driving with an exhaust brake on.
cowboy_dan 10-31-2007, 02:43 PM What you are noticing is the EBPV closing. When it restricts the exhaust to warm the engine up it will rob some power. This is normal operation.
You can disable it if you want but warm up time will be longer.
It's no longer automaticaly actuated. I cut the wire from the PCM and the actuator is on a switch.
Cat_Rebel 11-01-2007, 04:21 AM It's no longer automaticaly actuated. I cut the wire from the PCM and the actuator is on a switch.
Hey Dan how much did that cost you & how hard was it to do? My buddy was thinking about doing that to his Superduty with a 4R100. I could only find the instructions for a stick shift.
cowboy_dan 11-01-2007, 05:56 PM Hey Dan how much did that cost you & how hard was it to do? My buddy was thinking about doing that to his Superduty with a 4R100. I could only find the instructions for a stick shift.
Pretty simple. I used relays and diodes in mine to make sure I didn't hurt the ECM, so mine is a little more complicated. I'd have to look through some old stuff and see if I can find what I used exactly. PM me in a week or two if I haven't gotten back to you.
Big_Dan97 11-02-2007, 01:22 AM Mine idles really loud when its cold, like a high pitched cackle instead of the blum blum blum.
Hey Cat, google swamp donkey ebpv or try steve bazs page, if no luck, start a new post Im sure someone has it in their favorites or something, it wasnt that hard, it cost about $15 if you have some wire. Most expensive parts are the little leds, and the switch. If you have a fax machine pm me your number and I can fax it to ya.
Dan
cowboy_dan 11-02-2007, 05:00 AM It's not that it cackles any worse at idle, and it doesn't romp, gallop, trot, or canter. It just doesn't like to get up and go until it starts to warm up.
Any thoughts on sensors?
Cat_Rebel 11-02-2007, 05:40 AM Mine idles really loud when its cold, like a high pitched cackle instead of the blum blum blum.
Hey Cat, google swamp donkey ebpv or try steve bazs page, if no luck, start a new post Im sure someone has it in their favorites or something, it wasnt that hard, it cost about $15 if you have some wire. Most expensive parts are the little leds, and the switch. If you have a fax machine pm me your number and I can fax it to ya.
Dan
Yep that where I was looking at it, I got it all printed off & gave it to my buddy. Just haven't taken the time to read it yet!
Big_Dan97 11-03-2007, 07:13 PM Hey cowboy Dan,
Basically all I could say is get a modded ped, gut the ebpv, I think thats the best thing to do if you want it to gitty up when cold. Its normal for the truck to be sluggish when its cold because of the ebpv. Using the lighter weight oil like posted abouve might no be a bad idea, I use delo 1540 all year but it doesnt get as cold as wisconsin here. If you decide to gut the ebpv dont let anyone talk you out of the modded pedistal because if you dont get a modded one the actuator will leak, thats not an if, its when itll leak, Im going to gut mine but Im waiting till I get an aftermarket turbo, no sense pullin that damn thing more than you have to!Hope that helps.
Dan
RampRat 11-06-2007, 02:16 PM It's normal for em. I just set the AIC and let her idle at 1300rpm for a few min in the AM and that takes care of the early morning sluggies :D:D
If ya really want to make things a tad easier go to a lighter oil (Rotella makes a superb arctic weight I ran when living in North Dakota) or just get a heat pad & sillycone it to the oil pan & plug it in over night along with the block heater. Have not ran the heating pad for a couple years, but it's still there if it gets really cold as I'm running 15-40 Rotella.
Ifin ya don't get the RPM's up high enough then ya will oil wash your cylinders (really bad juju) & build up lots of unburnt diesel & smoke like a real pig. Last year I smoked like a pog all the time after start up in the winter till she got warm (when I did not wait for the AIC to do it's job),
http://i39.photobucket.com/albums/e184/Rampy556/IMG_1992.jpg
http://i39.photobucket.com/albums/e184/Rampy556/IMG_1991.jpg
Madvan 11-06-2007, 07:30 PM I have used the AIC in the same way. One morn i hit the charge button by mistake. Scared the hell out of me. Felt like a runaway diesel, it tried to charge with the gp's on. I will never make that mistake again!
Bill
StrokerTurbo7.3 11-07-2007, 01:53 AM When I first start my truck up in the morning when its cold its just a cloud of blue smoke. Is that fine or bad or what? When I set it on Hi-Idle it doesnt do it
RampRat 11-07-2007, 02:50 AM When I first start my truck up in the morning when its cold its just a cloud of blue smoke. Is that fine or bad or what? When I set it on Hi-Idle it doesnt do it
Normal is it.
StrokerTurbo7.3 11-07-2007, 03:02 AM ok wasnt sure first time owning a diesel in the cold weather and wasnt sure. What exactly is the reason its doing that? just wondering
Cat_Rebel 11-13-2007, 02:24 PM Diesels do all kinda of cool things when it's cold out! Mine will smoke just a nice haze of black/gray for awhile when it's cold out because the pump is turned up.
tomboyup 11-30-2007, 07:06 AM Started my wagon up this morning after a 20o chilly nite and it did this nice loping number 3 - 4 times ( wow, what a ride ! ). :D Thought for a minute it was going to stall out - but it didn't. I kind of miss the jet takeoff sound that I used to have until CatKid unpludded my EBV. :rolleyes:
cowboy_dan 03-24-2009, 08:42 PM I thought I'd dredge this old thread up for an update.
I'm convinced I have a sensor that is not reading correctly in the cold weather. I switched over to Schaeffer's synthetic 5w-40, and it still is sluggish in the morning. Absolutely no difference in this between Rotella 15W40, Case 15w40, and Schaeffer's synthetic 5w-40.
theSLEEPER 03-24-2009, 09:27 PM So you've been having that problem for 2 years??
mandkole 03-24-2009, 11:11 PM I thought I'd dredge this old thread up for an update.
I'm convinced I have a sensor that is not reading correctly in the cold weather. I switched over to Schaeffer's synthetic 5w-40, and it still is sluggish in the morning. Absolutely no difference in this between Rotella 15W40, Case 15w40, and Schaeffer's synthetic 5w-40.
The EOT sensor affects timing and it may not be adjusting as the motor accelerates. Have you ever watched the EOT on AE?
cowboy_dan 03-25-2009, 09:12 PM So you've been having that problem for 2 years??
yup. It's not near as noticable at 40-60 deg weather as it is at -10. In the summer when I can work on it I have higher priorities because it isn't bothering me then. In cold weather when it does bother me, it's too cold to work on it. Kinda like a roof that never leaks when it doesn't rain.
The EOT sensor affects timing and it may not be adjusting as the motor accelerates. Have you ever watched the EOT on AE?
Good stuff to know. I wasn't sure if it was the ECT or EOT it would use. I could see it using either.
Don't have AE, that's on my to-get list. Hopefully by the end of the year.
biostroke1 03-25-2009, 09:16 PM both my 6.0's do that.
Reubine 03-26-2009, 02:43 AM Mine is the same way when I don't let it get up to temp before I romp on it. Mine will actually stall some when i get on it before its up to temp. I think its normal as oil is actually firing the injectors so thicker oil in cold temps.
mandkole 03-26-2009, 03:33 PM In watching the EOT on the scan gauge, during colder weather (below 35) the temp builds very slowly. I could start the truck, run it on high idle for a couple minutes then leave, it would take about 3 miles at 40-50 mph to get to 130F. Until it gets to about 80-90F, I'm real easy on it because its loud and just not real happy.
cowboy_dan 12-15-2009, 05:36 PM Update:
I replace the EOT sensor this summer, and the engine runs MUCH better in cold weather now.
I didn't get a chance to put AE on it with the old sensor in cold weather, so I don't know what it was reading, but the new sensor definately fixed it.
Other than being extremely loud at 0 deg F, the truck runs exactly like it does at 70 deg F.
yeehaw 12-15-2009, 11:15 PM i might have to do this, for the first 5 minutes or so my truck is real sluggish but i just dont beat on it then so its all cool
and dan im just northwest of you!
Jjona5 12-15-2009, 11:39 PM Would this sensor happened to be listed as a coolant sensor?
DY-961 F5AZ-12A648-AB ?
cowboy_dan 12-16-2009, 06:17 PM I walked into Autozone, asked them to cross F2AZ-12A648-A to their number, and it came out as a DuraLast SU201.
But to answer your question, no.
The F5AZ-12A648-AB (autozone SU284) has a rectangular connector, and the F2AZ-12A648-A (autozone SU201) has a round connector.
Also, this: http://www.not2fast.com/electronics/component_docs/AN1791.pdf has a temp-to-resistance chart for the SU201.
Kyle, did you get your fuel bowl heater replaced?
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