Kinda embarrasing......
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Elder User
Joined: Aug 2003
Posts: 568
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From: Kansas
Kinda embarrasing......
I've read on here and even posted my concern about acceluration in cold weather immediately after start up. As most of you replied, you need to let it warm up for a few minutes after start up so it won't be so sluggish. Comparing this diesel engine to the Turbo'ed diesels in my farm tractors, the throttle reponse on the farm tractor is the same if the temp is 10 degrees or 80 degrees. True, the farm tractor engine doesn't have a "waste gate" system and from your previous reponses, most of you have indicated that this is where the "bottle neck" is on the cold 7.3L.
I understand that this is to aid in warm-up. Why did International design this engine with this "bottle neck" feature when it's not needed on a farm tractor?
It's been awhile since I read the supplement manul on the 7.3L diesel but does it address this poor acceluration on a freshly started cold engine?
If it wasn't for this forum and your previous replies, I would think I had a problem and would be headed to the dealership. Your thoughts please.
I understand that this is to aid in warm-up. Why did International design this engine with this "bottle neck" feature when it's not needed on a farm tractor?
It's been awhile since I read the supplement manul on the 7.3L diesel but does it address this poor acceluration on a freshly started cold engine?
If it wasn't for this forum and your previous replies, I would think I had a problem and would be headed to the dealership. Your thoughts please.
Junior User
Joined: Aug 2003
Posts: 96
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From: South Carolina
Throttle response
Although we don't have super cold mornings I have experienced the lack of power when the EBP valve (exhaust back pressure) valve is closed. The truck just has nothing. But if you are gentle on the throttle it will usually open up in twenty or thirty seconds. I just putt down the neighborhood and blink just like a light switch she comes alive and off I go. If it is truly necessary?? Maybe not but then again if you are riding around on a tractor with an open cab you won't be pushing very hard either. So take your time, take an extra sip of coffee or two as you putt out to the main road. She'll be ready to rock and roll by then.
Scott
Scott
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From: Bonney Lake, WA
Why did International design this engine with this "bottle neck" feature when it's not needed on a farm tractor?
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Elder User
Joined: Aug 2003
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From: Kansas
Thought I'd let you guys know, this morning, it was 0 degrees and I started it and let it run for probably 3 minutes. After this, I left and went to town and it performed much better..maybe not quit 100% but it got better after a mile down the road.
Read in the Diesel supplement book in a short paragraph where the EBA valve, when in operation, the owner will notice a change in engine performance after cold weather start ups. Thats all it says...not real informative to a first time 7.3L owner. Thanks guys.
Read in the Diesel supplement book in a short paragraph where the EBA valve, when in operation, the owner will notice a change in engine performance after cold weather start ups. Thats all it says...not real informative to a first time 7.3L owner. Thanks guys.
Postmaster
Joined: Feb 2002
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From: Bonney Lake, WA
The EBPV is so easy to disconnect, I'm kicking myself for not telling you about this in my previous post. At the base of the turbo, laying across the top of the engine, is a two wire harness. Disconnect that, and the EBPV won't engage.
New User
Joined: Feb 2004
Posts: 15
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From: Arkansas
I use a Western Diesel Exhaust Brake so I have to keep my EBV hooked up. I just let it warm up using the idle controller that is part of the WD exh. brake. After a short cup of coffee the cab is warm and the brake is now operating normal. Our temps don't get that cold here, but enough to activate the EBV.
New User
Joined: Jul 2003
Posts: 5
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From: Rapid City, SD
It has been -20 F here lately (two weeks ago ) and I have really noticed the lack of power from it kicking in. As long as you don't mind getting on it it will be fine, but when I feather the gas you can really feel it kick in. At least in warms up though and then kicks off....
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