Wastegate Actuator
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 41
Likes: 0
Wastegate Actuator
I have a 94 F350 with a 7.3L IDI Turbo and need to find out how to check the wastegate actuator to see if it is working and opening the wastegate. If it is bad how can I go about finding a new replacement. The part is not available from the dealer and all I can find on other websites is actuators for the powerstroke.
New User
Joined: Jul 2017
Posts: 17
Likes: 0
I have a 94 F350 with a 7.3L IDI Turbo and need to find out how to check the wastegate actuator to see if it is working and opening the wastegate. If it is bad how can I go about finding a new replacement. The part is not available from the dealer and all I can find on other websites is actuators for the powerstroke.
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 41
Likes: 0
Trending Topics
Lead Driver
Joined: Apr 2008
Posts: 6,945
Likes: 13
The factory turbo IDIs were wastegated, as well as 99+ Powerstrokes. Why do you want to know if its opening? Most people disable it, which is a poor choice imo. You can adjust them to raise the opening pressure.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Thread Starter
|
Freshman User
Joined: Aug 2012
Posts: 41
Likes: 0
I thought that it would open when you increase the throttle from an idle to a higher RPM. I did not notice any movement in the actuator when I ran the throttle up so thought the actuator was defective. I removed the hose from the actuator and found that I had air pressure when I ran the throttle up. I am not that familiar with Turbo's so any information is appreciated. As far as disabling it I don't feel that is an option, if it is supposed to be there and in working condition then that is what I want. Thanks for the help.
Postmaster
Joined: Dec 2011
Posts: 3,860
Likes: 7
All it does is limit boost. It won't do anything until you get at least 5-6 psi of boost, then it will open to reduce restriction, as the stock engine doesn't need any more air to burn all of the stock fuel available.
It should *not* do anything except under enough load(enough fuel being added) to create that boost - you probably won't see it do anything unless you are towing.
Personally, I disagree with keeping things stock - Add a couple of gauges(EGT, boost), disconnect the wastegate and add some more fuel, and the engine will basically double in power. It's totally limited by how little fuel Ford decided to give it.
It should *not* do anything except under enough load(enough fuel being added) to create that boost - you probably won't see it do anything unless you are towing.
Personally, I disagree with keeping things stock - Add a couple of gauges(EGT, boost), disconnect the wastegate and add some more fuel, and the engine will basically double in power. It's totally limited by how little fuel Ford decided to give it.
Lead Driver
Joined: Apr 2008
Posts: 6,945
Likes: 13
I didnt say anything about keeping it stock, but disabling the wastegate, by locking it out or unhooking the reference hose is kinda dumb. They are semi easily adjustable to where you get the best of both worlds. Banks even makes a aftermarket replacement that is pre-set to 20 psi manifold pressure. By not disabling it you get the perks of more boost while also keeping drive pressure in check. Maybe not that big of deal on a stock pump turned up, but with a 90cc or 110cc youre making ALOT of unnecessary heat, drive pressure, overboosting, and possibly overspeeding. All of that can be tuned via the wastegate.
Postmaster
Joined: Dec 2011
Posts: 3,860
Likes: 7
The OP did:
If I was able to push 20 PSI out of a stock turbo, yeah, I'd agree with you. I haven't been able to do it yet, even with a 110CC IP... and installing a wastegate that is never used is just a waste of money.
I've done it with a Banks TE06H(23 PSI; bent an exhaust pushrod), and yeah, once you get up to 18+PSI, you are just creating heat, no extra power.
But that took a 110CC IP to do that, and anyone buying an IP like that is going to want/need to do a bunch of research beforehand anyway. What I'm saying should work fine for a 'stock' setup.
I did recommend adding a boost gauge as well, so you can see what you are doing.
As far as disabling it I don't feel that is an option, if it is supposed to be there and in working condition then that is what I want.
but disabling the wastegate, by locking it out or unhooking the reference hose is kinda dumb. They are semi easily adjustable to where you get the best of both worlds. Banks even makes a aftermarket replacement that is pre-set to 20 psi manifold pressure. By not disabling it you get the perks of more boost while also keeping drive pressure in check. Maybe not that big of deal on a stock pump turned up, but with a 90cc or 110cc youre making ALOT of unnecessary heat, drive pressure, overboosting, and possibly overspeeding. All of that can be tuned via the wastegate.
I've done it with a Banks TE06H(23 PSI; bent an exhaust pushrod), and yeah, once you get up to 18+PSI, you are just creating heat, no extra power.
But that took a 110CC IP to do that, and anyone buying an IP like that is going to want/need to do a bunch of research beforehand anyway. What I'm saying should work fine for a 'stock' setup.
I did recommend adding a boost gauge as well, so you can see what you are doing.
Thread
Thread Starter
Forum
Replies
Last Post
94 smokin stroker
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
9
Oct 3, 2011 10:06 PM
oreocreaming
1987 - 1996 F150 & Larger F-Series Trucks
2
Jan 17, 2010 11:42 PM
