problem with 95 PSD skipping
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New User
Joined: Jan 2005
Posts: 15
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From: Statesboro, GA
problem with 95 PSD skipping
Okay, I'm fairly new to diesels, but I have a problem that I can't seem to find an answer to. I have a 95 f350 crewcab dually with the PSD and auto trans. Here's the problem. The engine runs really rough (skips) especially when it's cold. One mechanic told me it needs glow plugs and to try keeping the block heater plugged in at night. That improved things a little, but not much. Another guy said it was injectors. I had a leak from the fuel pump, so I had that guy install a new pump and he checked the injectors for me. He said that only the #1 injector checked out bad. I plan on replacing that injector soon. I picked up the truck and it was still running about the same around town. But when I got out on the road for about 15 minutes, it seemed to lose a lot of power. Had to floor it to accelerate from 55 to 65. That doesn't seem like just one injector to me. I read that these engines don't run too well if the temp is too cool. When I noticed the loss of power, the temp gauge had fallen to the lowest leg of the normal bracket. I'm in the process of installing a 205 degree thermostat, but one of the bolts broke off (new water pump time
!). What do you guys think I should do from here?
!). What do you guys think I should do from here?
Postmaster
Joined: Sep 2007
Posts: 4,195
Likes: 6
From: Medford Oregon
Wow, a lot of issues.
How many miles?
Did it run OK at some time?
Have you changed the oil lately?
Someone with smarts will jump in here and help but will probably need more information on past service.
How many miles?
Did it run OK at some time?
Have you changed the oil lately?
Someone with smarts will jump in here and help but will probably need more information on past service.
Thread Starter
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New User
Joined: Jan 2005
Posts: 15
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From: Statesboro, GA
No mods. Bone stock. Oil was changed less than 1000 miles ago. I know the mechanic well, and know that he did replace the pump. It's got about 130k miles. It ran a little rough when I bought it. Got better after I ran some Stanadyne in the fuel a few times, but never completely like it should be. I haven't been driving it much lately with fuel nearly $5 a gallon. I don't have a way to check the fuel pressure, but I can get it done if needed.
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New User
Joined: Jan 2005
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From: Statesboro, GA
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Post Fiend
Joined: Mar 2007
Posts: 9,010
Likes: 5
From: Johnson City, TN.
Clean the FPR screen then check pressure. Ohm out the GP's and disconnect the EBPV.
How did he check the injectors to tell you the one was bad.
If you need new injectors don't go dealer or even e-bay. Rosewood can do them for you cheap or you can do them yourself with his DIY kit.
How did he check the injectors to tell you the one was bad.
If you need new injectors don't go dealer or even e-bay. Rosewood can do them for you cheap or you can do them yourself with his DIY kit.
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Thread Starter
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New User
Joined: Jan 2005
Posts: 15
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From: Statesboro, GA
He checked the injectors with a scanner. Said the #1 injector was the only one that showed up bad. I'll check the pressure and clean the screen and ohm the gp's like you suggested. He thinks the injector harness might be partially unplugged or burning out.
Hotshot
Joined: Aug 2006
Posts: 10,764
Likes: 39
He may be right....
Thread Starter
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New User
Joined: Jan 2005
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From: Statesboro, GA
Fuel pressure seems good and the injector harnesses seem to be plugged in. I'm thinking about going ahead and rebuilding the injectors and replacing the wiring harnesses. My friend says he's seen some of these engines burn the wires and cause some of these type problems. How do you get in touch with Rosewood about the injectors?
Post Fiend
Joined: Mar 2007
Posts: 9,010
Likes: 5
From: Johnson City, TN.
Thread Starter
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New User
Joined: Jan 2005
Posts: 15
Likes: 0
From: Statesboro, GA
Neal, if I go with the stage I injectors, are there any other mods that I have to make right now? I was thinking of getting a mild chip eventually and maybe a 3" discharge pipe, but not really wanting a lot of mods. I'd just like an extra 50 or so hp and reasonable fuel mileage. I plan on doing the DIY cone type air filter that I read about on this site.