Cold Surging Problem
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From: Carson, Washington
Cold Surging Problem
Hi guys, I actually have a '95 PSD but am posting here for a friend with a '99 Super Duty. He has had aftermarket injectors installed about a year ago and shortly after that it started doing a weird surging thing when cold. At idle it will fluctuate between normal idle and about 1200 RPM off and on. It does it while driving also. After it is warmed up it goes away. Any ideas? I have not had this problem on my '95 so I'm not sure if it is an injector pump issue or a sensor. Thanks in advance.
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From: New Hampshire
Originally Posted by MPlayer
Hi guys, I actually have a '95 PSD but am posting here for a friend with a '99 Super Duty. He has had aftermarket injectors installed about a year ago and shortly after that it started doing a weird surging thing when cold. At idle it will fluctuate between normal idle and about 1200 RPM off and on. It does it while driving also. After it is warmed up it goes away. Any ideas? I have not had this problem on my '95 so I'm not sure if it is an injector pump issue or a sensor. Thanks in advance.
Nut
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From: Eastern Shore Md
Originally Posted by MPlayer
Hi guys, I actually have a '95 PSD but am posting here for a friend with a '99 Super Duty. He has had aftermarket injectors installed about a year ago and shortly after that it started doing a weird surging thing when cold. At idle it will fluctuate between normal idle and about 1200 RPM off and on. It does it while driving also. After it is warmed up it goes away. Any ideas? I have not had this problem on my '95 so I'm not sure if it is an injector pump issue or a sensor. Thanks in advance.
And if you can't figure it out you always have
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Ok, this sounds like a stupid question, but really isn't.
What kind of oil is he using, and is he using any additives (ok, I can't spell, but you know what I mean.)
I have the same problem with the surging when cold, and it drove me batty, until I went to the dieselman website. believe it is www.dieselman.com.
The surge when cold is a normal occurance of the engine when the oil is thick, and to solve it, you can put a lower viscosity oil in. I am using 1 gallon of Lucas in mine (99 PS with 182K), and it does it too.
It isn't worth trading the added protection to me to avoid the surge.
Just my 2centsworth
What kind of oil is he using, and is he using any additives (ok, I can't spell, but you know what I mean.)
I have the same problem with the surging when cold, and it drove me batty, until I went to the dieselman website. believe it is www.dieselman.com.
The surge when cold is a normal occurance of the engine when the oil is thick, and to solve it, you can put a lower viscosity oil in. I am using 1 gallon of Lucas in mine (99 PS with 182K), and it does it too.
It isn't worth trading the added protection to me to avoid the surge.
Just my 2centsworth
Senior User
Joined: Aug 2005
Posts: 431
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From: Eastern Shore Md
No... makes perfect sense, but oil shouldn't make it fluctuate that far in RPMs. Which makes me think other things. Unless it's an extreme "change" intrveal or wrong oil etc. etc. Or 30w tractor oil or somthing.
Last edited by RushN350; Jan 27, 2006 at 07:26 PM.
More Turbo
Joined: Dec 2005
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From: Idaho City Idaho
[QUOTE=molotov]Ok, this sounds like a stupid question, but really isn't.
(ok, I can't spell, but you know what I mean.)
It least it is near enough it can be figured out , mine needs a decoder ring
(ok, I can't spell, but you know what I mean.)
It least it is near enough it can be figured out , mine needs a decoder ring
Postmaster
Joined: Jun 2005
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From: New Hampshire
Originally Posted by molotov
Ok, this sounds like a stupid question, but really isn't.
What kind of oil is he using, and is he using any additives (ok, I can't spell, but you know what I mean.)
I have the same problem with the surging when cold, and it drove me batty, until I went to the dieselman website. believe it is www.dieselman.com.
The surge when cold is a normal occurance of the engine when the oil is thick, and to solve it, you can put a lower viscosity oil in. I am using 1 gallon of Lucas in mine (99 PS with 182K), and it does it too.
It isn't worth trading the added protection to me to avoid the surge.
Just my 2centsworth
What kind of oil is he using, and is he using any additives (ok, I can't spell, but you know what I mean.)
I have the same problem with the surging when cold, and it drove me batty, until I went to the dieselman website. believe it is www.dieselman.com.
The surge when cold is a normal occurance of the engine when the oil is thick, and to solve it, you can put a lower viscosity oil in. I am using 1 gallon of Lucas in mine (99 PS with 182K), and it does it too.
It isn't worth trading the added protection to me to avoid the surge.
Just my 2centsworth
Nut
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From: Carson, Washington
I'm not sure of the injector size but they were supposed to gain somewere around 60 HP. The EBPV is still plugged in. I told him about that but we didn't mess with it yet. I have mine unplugged on my '95 because I got tired of having to throttle it so much when it was cold because the EBPV was still closed. He is using Delo oil right now. No additives.
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Senior User
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From: Carson, Washington
Just wanted to revisit this and see if anyone had any other ideas. We will try unplugging the EBPV and see what happens. It may be an oil thing though. If I remember right, the first time I noticed it we were camping and riding quads in northern Washington in January. I'll ask him if it does it during the summer also.
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Joined: Jun 2003
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From: Ardenvoir, Washington
Type of oil is a factor.. I been using Delo 400 for 6 years now on my 99 and the engine would surge or lope without fail everytime, since it was new.. even in the summer. I switched to Shell Synethic last month and the engine does not lope when cold any more.. period.
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From: New Hampshire
Originally Posted by clintbonnie
Type of oil is a factor.. I been using Delo 400 for 6 years now on my 99 and the engine would surge or lope without fail everytime, since it was new.. even in the summer. I switched to Shell Synethic last month and the engine does not lope when cold any more.. period.
Got some info on the cause of loping/surge:
I quote a BITOG forum member:
"Yes the oil does cause loping during idle in some engines at non-specific times. This is caused by the lack of anti-foam additive. It gets depleted. Go to the International Dealer and buy some Anti-Foam. Very inexpensive. We have a member on here that uses the Anti-Foam additive as a matter of course."
and another gents insightful info:Some PSD's just lope if they don't use a thinner cold viscosity oil when cold. Every winter, there are reports on TDS of trucks loping at start-up. A switch to any 5w-40 or 10w-30 diesel oil eliminates it, and then when the weather turns warm, then 15w-40 works fine again. This loping can be a sign of non-working glow plugs and also a weak fuel pump. Sometimes cycling the key through two glow plug burns will prevent it."
Nut
Cargo Master
Joined: Jun 2003
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From: Ardenvoir, Washington
Originally Posted by PSNut
Clint,
Got some info on the cause of loping/surge:
I quote a BITOG forum member:
"Yes the oil does cause loping during idle in some engines at non-specific times. This is caused by the lack of anti-foam additive. It gets depleted. Go to the International Dealer and buy some Anti-Foam. Very inexpensive. We have a member on here that uses the Anti-Foam additive as a matter of course."
and another gents insightful info:Some PSD's just lope if they don't use a thinner cold viscosity oil when cold. Every winter, there are reports on TDS of trucks loping at start-up. A switch to any 5w-40 or 10w-30 diesel oil eliminates it, and then when the weather turns warm, then 15w-40 works fine again. This loping can be a sign of non-working glow plugs and also a weak fuel pump. Sometimes cycling the key through two glow plug burns will prevent it."
Nut
Got some info on the cause of loping/surge:
I quote a BITOG forum member:
"Yes the oil does cause loping during idle in some engines at non-specific times. This is caused by the lack of anti-foam additive. It gets depleted. Go to the International Dealer and buy some Anti-Foam. Very inexpensive. We have a member on here that uses the Anti-Foam additive as a matter of course."
and another gents insightful info:Some PSD's just lope if they don't use a thinner cold viscosity oil when cold. Every winter, there are reports on TDS of trucks loping at start-up. A switch to any 5w-40 or 10w-30 diesel oil eliminates it, and then when the weather turns warm, then 15w-40 works fine again. This loping can be a sign of non-working glow plugs and also a weak fuel pump. Sometimes cycling the key through two glow plug burns will prevent it."
Nut
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Originally Posted by molotov
Ok, this sounds like a stupid question, but really isn't.
What kind of oil is he using, and is he using any additives (ok, I can't spell, but you know what I mean.)
I have the same problem with the surging when cold, and it drove me batty, until I went to the dieselman website. believe it is www.dieselman.com.
The surge when cold is a normal occurance of the engine when the oil is thick, and to solve it, you can put a lower viscosity oil in. I am using 1 gallon of Lucas in mine (99 PS with 182K), and it does it too.
It isn't worth trading the added protection to me to avoid the surge.
Just my 2centsworth
What kind of oil is he using, and is he using any additives (ok, I can't spell, but you know what I mean.)
I have the same problem with the surging when cold, and it drove me batty, until I went to the dieselman website. believe it is www.dieselman.com.
The surge when cold is a normal occurance of the engine when the oil is thick, and to solve it, you can put a lower viscosity oil in. I am using 1 gallon of Lucas in mine (99 PS with 182K), and it does it too.
It isn't worth trading the added protection to me to avoid the surge.
Just my 2centsworth
