Sticking wastegate??
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Sticking wastegate??
I am trying to figure if my wastegate or EBV are sticking so that they are not fully opening. Here is the situation....over the course of some time I have noticed that when the truck, especially when under load with a trailer, seems to have increased EGT's. When you first start the truck the EGT run comparably to where they always have. When driving the truck, without a trailer, you occasionally notice the EGT going up but not coming back down as fast. Then with a trailer, especially in OD at low RPMs say 1500-1700, you notice the EGT's go much higher than normal, up to 1200 or so, and not come down near as fast as they used to when you get out of the accel pedal. Using logic, I am thinking there is a block in the exhaust end someplace which would account for the EGT' sgoing up but coming down very slowly. If you take the OD off when the EGT's climb they come down to 900 in short order but don't go lower. There also seems to be a lack of power in OD at low RPM's. Any thoughts????
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Kwik,
Just the man I wanted to see!! I can recreate it basically at any time. If I have a 5000# trailer it is the easiest. If I am in OD, without cruise, all I need to do is give it some gas without it kicking out of OD. The EGT goes to 1200 or higher if I let it in a flash. So of course I let off the gas and they come down extremely slow! It just seems like at most times the EGT is 100-200 higher and then this circumstance. It is not the temp probe because it will run at normal temps when I let it idle for maybe 5 min or more. It just seems like it can't get rid of the exhaust gas anymore?? Thats my thought anyway. You??
Just the man I wanted to see!! I can recreate it basically at any time. If I have a 5000# trailer it is the easiest. If I am in OD, without cruise, all I need to do is give it some gas without it kicking out of OD. The EGT goes to 1200 or higher if I let it in a flash. So of course I let off the gas and they come down extremely slow! It just seems like at most times the EGT is 100-200 higher and then this circumstance. It is not the temp probe because it will run at normal temps when I let it idle for maybe 5 min or more. It just seems like it can't get rid of the exhaust gas anymore?? Thats my thought anyway. You??
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Boost levels are running the same as they normally were, but the turbo seems to possibly be working a touch harder under load. It still generates teh 22-25 pounds when it drops down under load. As far as configuration it is a F-250 with 168K on the ticker and many of the standard mods including chip, tymar, 4" exhaust, fuel tank mods, and those types of things. Thoughts?
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Postmaster
Joined: Jun 2005
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From: New Hampshire
Originally Posted by Jerrod
Boost levels are running the same as they normally were, but the turbo seems to possibly be working a touch harder under load. It still generates teh 22-25 pounds when it drops down under load. As far as configuration it is a F-250 with 168K on the ticker and many of the standard mods including chip, tymar, 4" exhaust, fuel tank mods, and those types of things. Thoughts?
blow the line out with air.Disable the EBPV by disconnecting the sensor it will default the EBPV open. Tie wrap the sensor connector somewhere for safety.
Hope this helps.
Nut
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What if it is "mechanically" stuck?? For example carbon build up that is actually limiting the physical movement of the butterfly?
Am I on the right track with it beingthe EBPV or is it possibly something else? Lots of miles so I am sure things are going to wear out.
Am I on the right track with it beingthe EBPV or is it possibly something else? Lots of miles so I am sure things are going to wear out.
Postmaster
Joined: Jun 2005
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From: New Hampshire
Originally Posted by Jerrod
What if it is "mechanically" stuck?? For example carbon build up that is actually limiting the physical movement of the butterfly?
Am I on the right track with it beingthe EBPV or is it possibly something else? Lots of miles so I am sure things are going to wear out.
Am I on the right track with it beingthe EBPV or is it possibly something else? Lots of miles so I am sure things are going to wear out.
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
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From: Concord NC
Kwik,
I was referring to a post from the past when I suggested that you may could check externaly. https://www.ford-trucks.com/forums/s...highlight=EBPV.
I am probably wrong, I am still trying to learn from you guys, but don't this pic that you posted and I borrowed show how to check and see if it is open or closed????
I was referring to a post from the past when I suggested that you may could check externaly. https://www.ford-trucks.com/forums/s...highlight=EBPV.
I am probably wrong, I am still trying to learn from you guys, but don't this pic that you posted and I borrowed show how to check and see if it is open or closed????
Fleet Owner
Joined: Jun 2004
Posts: 25,090
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From: Rio Rico, AZ.
Originally Posted by zx250
Kwik,
I was referring to a post from the past when I suggested that you may could check externaly. https://www.ford-trucks.com/forums/s...highlight=EBPV.
I am probably wrong, I am still trying to learn from you guys, but don't this pic that you posted and I borrowed show how to check and see if it is open or closed????
I was referring to a post from the past when I suggested that you may could check externaly. https://www.ford-trucks.com/forums/s...highlight=EBPV.
I am probably wrong, I am still trying to learn from you guys, but don't this pic that you posted and I borrowed show how to check and see if it is open or closed????
Your wastegate lever is on the top of the turbo. Unless you don't actually have a wastegate like a van turbo.
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
Originally Posted by Jerrod
What if it is "mechanically" stuck?? For example carbon build up that is actually limiting the physical movement of the butterfly?
Am I on the right track with it beingthe EBPV or is it possibly something else? Lots of miles so I am sure things are going to wear out.
Am I on the right track with it beingthe EBPV or is it possibly something else? Lots of miles so I am sure things are going to wear out.
