Erratic boost issues
Thread Starter
|
Posting Guru
Joined: Oct 2012
Posts: 1,777
Likes: 4
From: Des Moines, IA
Erratic boost issues
So, as of a week or so ago I've noticed that the truck has been having an erratic boost issue. Sometimes when I go to get onto the freeway and have the truck under a good load it will build boost normally up to 20+ PSI but when I go to back down the throttle for cruising speed it drops down to 0 and stays there. If I get back on the throttle enough for it to downshift the boost comes back up and runs fun the rest of the drive. I've watched a scanner during the time and found that the VGT is at .85 when the boost is reading 0. MAP appears to be 14.9-40, EBP is 14.9-50, MAF is somewhere around 20-340 g/s. I was wondering if the turbo was sticking shut, but clearly the ECM is requesting it closed. Anything else I should check?
Thread Starter
|
Posting Guru
Joined: Oct 2012
Posts: 1,777
Likes: 4
From: Des Moines, IA
No codes at all in the PCM or FICM. ICP is dead on. 22% at idle with 580 PSI which has what it's read since it was bulletproofed. ICP actual vs desired is always within 10-20 PSI of each other. Was thinking about pulling the EBP sensor and tube and cleaning them to see if it makes a difference.
Thread Starter
|
Posting Guru
Joined: Oct 2012
Posts: 1,777
Likes: 4
From: Des Moines, IA
That's what I was curious if mine was sticking. If the vanes are sticking open that would explain why it feels so laggy when it happens. I'm debating at this point if I want to pull the turbo and rebuild it with a billet wheel or if I just want to go to a Powermax.
Trending Topics
Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
That's what I was curious if mine was sticking. If the vanes are sticking open that would explain why it feels so laggy when it happens. I'm debating at this point if I want to pull the turbo and rebuild it with a billet wheel or if I just want to go to a Powermax.
Sent from my Telegraph using IB AutoGroup
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread Starter
|
Posting Guru
Joined: Oct 2012
Posts: 1,777
Likes: 4
From: Des Moines, IA
Yea, mine is working fine now, but I know that it could use taking apart and cleaned. At that point I'm trying to decide if I want to take it apart and clean it and upgrade things with a billet wheel or if I want to go to a Powermax.
Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
Sent from my Telegraph using IB AutoGroup
Thread
Thread Starter
Forum
Replies
Last Post
wannabe7.3
6.0L Power Stroke Diesel
14
Feb 25, 2015 02:15 PM