Ford Powerstroke 99-03 7.3L Discussion of 99-03 7.3 Liter Ford Powerstroke Turbo Diesels

Help diagnose cold operation issue

Thread Tools
 
Search this Thread
 
  #1  
Old 12-26-2012, 06:50 PM
curtis73's Avatar
Diesel Fan
Thread Starter
Join Date: Mar 2012
Posts: 24
Received 0 Likes on 0 Posts
Default Help diagnose cold operation issue

99 E350 PSD, 113k, pathetically stock.

Occasionally when its very cold (below freezing) my PSD likes to do something funny. Startup is normal - GPR kicks on, crank, fire. Idles great. I let it idle as long as I can which is up to 10 minutes if I have the time, or 2-3 minutes if I'm late for work

The road I take is uphill about a half mile to a stop sign. As I pull out, everything is fine. I keep very light throttle since its cold. A few times now, about halfway up the hill, it starts "missing" and I mean its just like dropping a spark on a gas vehicle. I lose a cylinder and it chugs a cloud of unburnt fuel (bluish white). Normally that's all I get from it and it behaves after the stop sign.

This morning, it didn't want to move from the stop sign. It was idling rough (missing a cylinder), and when I hit the accelerator it didn't respond. It was as if the computer was only letting me get about 3% throttle. I put it in neutral and let it rev a bit and I got the cylinder back, put it in D, and it never gave me another bit of trouble - not on the way to work, not on the way to lunch, not on the way home.

Scanner reveals no codes pending, no codes set.

I considered the following:
- bad fuel; although it has done it over a few weeks and a few different fuel supplies.
- fuel filter; although it was changed about 8000 miles ago, it could be a problem.
- fuel gelling; but wouldn't that cause more issues than just one time in the morning when its cold?
- water in the fuel; but I opened the drain on the filter housing and only got diesel. I also verified that the "water in fuel" light is operational, but that may not mean anything.

Do these symptoms point to anything specific to you folks?
 
  #2  
Old 12-26-2012, 08:34 PM
cdiesel's Avatar
Diesel Fan
Join Date: Apr 2011
Location: Alfalfa, OR
Posts: 63
Received 16 Likes on 9 Posts
Default

Injectors...

Try plugging it in. Bet it doesnt do it again.
 
  #3  
Old 12-26-2012, 09:27 PM
curtis73's Avatar
Diesel Fan
Thread Starter
Join Date: Mar 2012
Posts: 24
Received 0 Likes on 0 Posts
Default

I would plug it in, but no plug since this was originally a TX van (thanks, smartass ) A block heater is in the works but I've never needed one in PA.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Diesel_Daddy6.0
Chevy/GMC Duramax 07.5 -10 LMM
1
11-12-2015 09:33 PM
Diesel_Daddy6.0
Diesel In Distress - Support Ticket
3
09-23-2015 03:12 AM
1997silverado
Chevy/GMC 6.2L and 6.5L
6
01-23-2015 05:06 PM
custom7.3
Ford 83-94 6.9 and 7.3L General
3
11-24-2014 05:16 PM
12vbomber
12 Valve 2nd Gen Dodge Cummins 94-98
7
11-04-2014 10:04 PM



Quick Reply: Help diagnose cold operation issue



All times are GMT -5. The time now is 10:03 AM.