Ecoboost waste gate/bov problem
02-12-2018, 10:39 AM
#101
Member
I think there is a spring inside the actuator that keeps the actuator and waste gate closed unless there is sufficient pressure to override the spring pressure. The gate should be closed when the engine is off. I think the gates are supposed to start opening at around 7 psi of boost. This starts letting the exhaust gas bypass the turbo so there isn't an overboost or runaway situation. The actuators should be preloaded using the jamb nuts so they start opening at the correct pressure. I ordered a vacuum/pressure pump from Amazon for 30 bucks so I can see what psi they are opening at. I think mine are opening at around 4psi so while my fluttering issue is solved, I'm not getting the mileage I'm used to. I'm around 15-16 l/100km where I should be around 10-11 l/100km. The gauge is critical when adjusting preload to make sure the actuators are opening at the same pressure. I wouldn't rely on thread count alone, just as a baseline. I'll update when I get my gauge and the weather warms up here in snowy Ontario.
02-12-2018, 10:45 AM
#102
Member
Mine is doing the same thing. BOV lifting at partial throttle, but at full throttle works great.
I recently had my passenger turbo off to replace a gasket and took the waste gate off the turbo. I bet i didnt get the jamb nuts in the right place.
How in the heck to i know which way to adjust them to correct this.
I recently had my passenger turbo off to replace a gasket and took the waste gate off the turbo. I bet i didnt get the jamb nuts in the right place.
How in the heck to i know which way to adjust them to correct this.
02-15-2018, 01:13 PM
#103
Couple of questions:
1. Im assuming this can be done (adjustment of the preload) on 13-14 Ecoboosts? reason I ask is, the only aftermarket actuators state they are for 11-12 Ecoboosts and IDK what the difference is. Which begs my other question:
2. If the wastegates are supposed to open at 7psi, why are the presets on the aftermarket wastegate actuators set for 5psi? (unless I am looking at it backwards and the less psi the spring, the more boost?)
Thanks
1. Im assuming this can be done (adjustment of the preload) on 13-14 Ecoboosts? reason I ask is, the only aftermarket actuators state they are for 11-12 Ecoboosts and IDK what the difference is. Which begs my other question:
2. If the wastegates are supposed to open at 7psi, why are the presets on the aftermarket wastegate actuators set for 5psi? (unless I am looking at it backwards and the less psi the spring, the more boost?)
Thanks
Last edited by F150miz; 02-15-2018 at 01:15 PM.
02-19-2018, 07:34 PM
#105
Ordered all new vacuum lines and wastegate solenoid. Seems the '14s have the same setup as the 2015-2017 (different pet numbers) and a single line going down to the driver side wastegate. Figured it couldn't hurt if there's a cut somewhere in the line or a bad solenoid although I would hope a bad solenoid would throw a code. When I have them off I plan to stick a vacuum pump on there and see when they open.
02-21-2018, 05:53 PM
#106
From turbosmart:
Thanks for reaching out to us with your product question. The turbo's themselves changed from one generation to another and that was cause enough for us to think that it is unlikely that the actuators would carry over. We also haven't had a lot of interest in producing these for the later generations F-150's. At least not enough to justify producing a new part number.
We have a full line of universal actuators that are available HERE if you want to compare these specs to the dimensions for the actuators in your truck and see if something carries over.
Let me know if there is anything else I can help you with.
Thanks for reaching out to us with your product question. The turbo's themselves changed from one generation to another and that was cause enough for us to think that it is unlikely that the actuators would carry over. We also haven't had a lot of interest in producing these for the later generations F-150's. At least not enough to justify producing a new part number.
We have a full line of universal actuators that are available HERE if you want to compare these specs to the dimensions for the actuators in your truck and see if something carries over.
Let me know if there is anything else I can help you with.
03-24-2018, 07:16 PM
#107
****UPDATE****
i replaced the wastegate solenoid to no avail. I didn't realize the new lines came with one and new worm clamps so tomorrow I will be checking the psi at which the wastegates are opening and replacing the lines as well as adjusting the preload if necessary. Hopefully this will fix the issue, but everything I keep reading tells me that it's an issue with the software. I would think this could be tuned out or at least increased to open at 5psi and not 3, but tuner says no (supposedly they should open at 3-5psi not 7). I will report back. I will also be cleaning the tip and map sensors, with the amount of blownbynin my catchcan I imagine they are very dirty. At least that will hopefully get me better mpg. I haven't seen more than 14.2.
i replaced the wastegate solenoid to no avail. I didn't realize the new lines came with one and new worm clamps so tomorrow I will be checking the psi at which the wastegates are opening and replacing the lines as well as adjusting the preload if necessary. Hopefully this will fix the issue, but everything I keep reading tells me that it's an issue with the software. I would think this could be tuned out or at least increased to open at 5psi and not 3, but tuner says no (supposedly they should open at 3-5psi not 7). I will report back. I will also be cleaning the tip and map sensors, with the amount of blownbynin my catchcan I imagine they are very dirty. At least that will hopefully get me better mpg. I haven't seen more than 14.2.
Last edited by F150miz; 03-24-2018 at 07:22 PM.
04-28-2018, 07:24 PM
#109
****UPDATE****
i replaced the wastegate solenoid to no avail. I didn't realize the new lines came with one and new worm clamps so tomorrow I will be checking the psi at which the wastegates are opening and replacing the lines as well as adjusting the preload if necessary. Hopefully this will fix the issue, but everything I keep reading tells me that it's an issue with the software. I would think this could be tuned out or at least increased to open at 5psi and not 3, but tuner says no (supposedly they should open at 3-5psi not 7). I will report back. I will also be cleaning the tip and map sensors, with the amount of blownbynin my catchcan I imagine they are very dirty. At least that will hopefully get me better mpg. I haven't seen more than 14.2.
i replaced the wastegate solenoid to no avail. I didn't realize the new lines came with one and new worm clamps so tomorrow I will be checking the psi at which the wastegates are opening and replacing the lines as well as adjusting the preload if necessary. Hopefully this will fix the issue, but everything I keep reading tells me that it's an issue with the software. I would think this could be tuned out or at least increased to open at 5psi and not 3, but tuner says no (supposedly they should open at 3-5psi not 7). I will report back. I will also be cleaning the tip and map sensors, with the amount of blownbynin my catchcan I imagine they are very dirty. At least that will hopefully get me better mpg. I haven't seen more than 14.2.
so I just now got to doing this vacuum test on the wastegate actuators, it's still been snowing here in Michigan. Soooo I did it on the driver side turbo which is where the noise comes from. I was only able to pump it to a maximum of 8inhg (~4psi). It holds vacuum, didn't leak, but did not move the actuator rod and it won't draw any more vacuum. Is my pump crap? It's a standard handpump/brake bleeder with vacuum gauge. I haven't done anymore since I don't want to damage anything. What's my problem here?
04-28-2018, 07:29 PM
#110
To add to this, maybe it did open at about 4psi and I can't see the rod move and that's why it won't draw any more vacuum because it's open? I had my head in the wheel well about 1ft from he ros, but I should see it visibly open right? Or would it only open like a mm or something I might not see with my eye?