Vrv Valve Adjustment
Thread Starter
|
Junior User
Joined: Aug 2005
Posts: 56
Likes: 0
Vrv Valve Adjustment
I've Searched All The Forums About How To Adjust The Vrv Valve On A 6.9.i Read All The Vacuum Settings Threads.i Need To Know What It Actually Is That You Adjust.do You Take Off The Black Plastic Cap To Get To It?tranny Is Shifting At High Rpms And Unusally Hard.modulator Valve On Tranny Is New.
i ain't rite
Joined: Mar 2005
Posts: 65,565
Likes: 5,601
From: Marlboro Mental Hospital.
before adjusting the vrv, check the vacuum. you should have around 21-25 inches. i bet your pump is going bad and you only are pulling around 17 inches, causing the hard, late shift
Elder User
Joined: Mar 2002
Posts: 529
Likes: 0
From: France
Post Fiend
Joined: Nov 2004
Posts: 5,638
Likes: 1
From: Manitoba
How to adjust VRV by James
You don't have the engine running for the test, you need to apply 20" vacuum to upper VRV port and attach vacuum gauge to lower VRV port. The lower port is the one that goes to tranny, the upper to vacuum pump.
You have to maintain 20" througout this test. If it drops off you need to pump it back up.
Remove throttle return spring, cycle throttle lever 5 times from idle to WOT. Make sure 20" vacuum is maintained on upper port side.
Move throttle so it is 0.515" (33/64") from wide open (they make a tool for this). Vacuum gauge should read from 6-8" of vacuum. If incorrect adjust VRV to 7".
Again apply 20" vacuum, cycle throttle from idle to WOT 5 times. Return to idle. Gauge should read at least 13".
It says if you can't get the 7" or the 13" to replace the VRV. If VRV checks out maybe the diaphragm (modulator), line from VRV goes to the vacuum diaphragm I believe. Can't find any adjustment for the diaphragm but I think there is a little.
Basically all you need for the test is a vacuum pump (handheld type), vacuum gauge and a ruler to measure 1/2" or a 33/64" drill bit in lieu of the .515" tool. And a screwdriver for any adjustment needed.
You don't have the engine running for the test, you need to apply 20" vacuum to upper VRV port and attach vacuum gauge to lower VRV port. The lower port is the one that goes to tranny, the upper to vacuum pump.
You have to maintain 20" througout this test. If it drops off you need to pump it back up.
Remove throttle return spring, cycle throttle lever 5 times from idle to WOT. Make sure 20" vacuum is maintained on upper port side.
Move throttle so it is 0.515" (33/64") from wide open (they make a tool for this). Vacuum gauge should read from 6-8" of vacuum. If incorrect adjust VRV to 7".
Again apply 20" vacuum, cycle throttle from idle to WOT 5 times. Return to idle. Gauge should read at least 13".
It says if you can't get the 7" or the 13" to replace the VRV. If VRV checks out maybe the diaphragm (modulator), line from VRV goes to the vacuum diaphragm I believe. Can't find any adjustment for the diaphragm but I think there is a little.
Basically all you need for the test is a vacuum pump (handheld type), vacuum gauge and a ruler to measure 1/2" or a 33/64" drill bit in lieu of the .515" tool. And a screwdriver for any adjustment needed.
i ain't rite
Joined: Mar 2005
Posts: 65,565
Likes: 5,601
From: Marlboro Mental Hospital.
but adjusting the vrv will not do you any good if your vacuum pump on the motor is not suplying you with at least 20 inches of vacuum. if the pump is no good all the adjusting and changing in the world is not going to do you any good. the first thing you need to do is check to see how much vacuum your pump is pulling.
if you are getting at least 20 inches, then the vrv is adjusted by loosening the 2 7/16 bolts on the vrv. 1 is on the top, with a slot under it on the valve, the other is on the bottom
if you are getting at least 20 inches, then the vrv is adjusted by loosening the 2 7/16 bolts on the vrv. 1 is on the top, with a slot under it on the valve, the other is on the bottom
Thread Starter
|
Junior User
Joined: Aug 2005
Posts: 56
Likes: 0
vacuum pump is new and pulling 24 inches.modulator valve on tranny is new.i tried adjusting the modulator on the tranny(counterclockwise)but it did'nt help.after looking at the vrv a little closer,someone previously had broken off the bottom fitting for the vacuum line that feeds the tranny and siliconed it back on.(nice huh)guess i'll be spending $110 at ford for a new one.thanks for all your info.
i ain't rite
Joined: Mar 2005
Posts: 65,565
Likes: 5,601
From: Marlboro Mental Hospital.
i would call around. $110 is way out of line. i paid $45 6 months ago here in jersey at the local ford dealer
Trending Topics
Thread Starter
|
Junior User
Joined: Aug 2005
Posts: 56
Likes: 0
That's Good To Hear.the Ford Dealer In My Town Is A Ripoff Anyway.did You Have To Order It,or Did They Have It In Stock?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
cabloom300
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
21
Apr 19, 2015 09:21 PM
