C6 vacuum modulator color Creekside2 Collectibles and More (30966) 100% positive; Seller's other items Seller's other items; Contact seller; Check vacuum at modulator. Does the pin have a purpose? Modulator Valve stripe color & Adjustment? 80s Trucker. Joined Nov 11, 2002 Messages 3,571. However, its purpose and function are often misunderstood. Click to expand No, it will not cause damage, it'll just shift funny. C4 and C6 automatic transmission vacuum modulator, white or green stripe. I have one part that is driving me nuts. Ford ID's the modulator by the color of the band on them. Make the hollow and brass pins each approx 1. Hi all and Merry Christmas Replacing my vacuum module on my 66 automatic (c4) and 289. Looking for a chart of color bands on the C6 modulator. At higher speeds and greater throttle opening, such as at WOT, the governor is the main player that determines up shift speeds. (1)Push-in Style, Adjustable Vacuum Modulator (Made in USA). Am needing to replace the transmission vacuum modulator. 1 3rd, 78, c6, color, drive, ford, Vacuum line to the modulator MUST be connected to full manifold vacuum. Clutch, Transmission, Differential, Axle & Transfer Case. WOT shift point is controlled by the governor. Again, PURPLE and GREEN are NOT the correct units to use, BLACK is the c6 modulator valve. I certainly think the shifting issue is vacuum related, when you let off the gas, manifold vacuum instantly rises & this signal is transmitted to the modulator. 5. Back to Subforum. If fluid comes out of the vacuum line your modulator is not good. I wanted to replace my modulator valve as it was leaking and I found that the auto supply stores have modulator valves with different color stripes on them. $33. That the hoses are on it right. TCI Transmission Vacuum Modulators. Clutch, Transmission, Differential, Axle & Transfer The modulator’s internal valves and springs regulate the flow of hydraulic fluid in response to changing engine vacuum. Its been along time since I have seen a dual vacuum modulator, and all the ones I have seen have had the outer line disconnected. Major Donald J Buy Scott Drake C4AZ-7A377-B Transmission Vacuum Modulator 65-71 C4 66-72 C6: Hard Parts - Amazon. C6 Corvette, 2005 - 2013. In stock. Ford Truck Enthusiasts Site Navigation. 95. 5 Turn The modulator positions a valve so the fluid at high vacuum does not jerk the tranny into gear. That mod valve is in the case I have a '76 Bronco 302 with a C4. vacuum modulator stripe color? Jump to Latest 3. transmission modulator. Joined Jan 25, 2011 Posts 71 Reaction score 0 Location 1973 - 1979 F-100 & Larger F-Series Trucks - 74 F100 C6 trans vacuum hookup - i have two vacuum lines coming from the modulator. Black stripe is good for lower vacuum applications. When higher amounts of engine vacuum act on the modulator, the transmission begins to shift earlier and softer. Jan 3, 2003 08:59 AM. They are identical is all shapes and lengths, nothing different. Jump to Latest 25K views 10 replies 5 participants last post by 514galaxie Sep 23, 2008. Just wanted that noted. On the C6 in Find many great new & used options and get the best deals for Ford C6 Purple Stripe Vacuum Modulator Transmission 1975-Up Push In at the best online prices at eBay! Free shipping for many products! Clutch, Transmission, Differential, Axle & Transfer Case - which modulator for c6 - Hey, i am driving an 88 F250 351W with a C6. I know the modulators goevern my shift points by vacuum pressure, and that We have the best Automatic Transmission Vacuum Modulator for the right price. I just replaced the vacuum modulator but it still revs up high and clunks into gear. The brake booster has a plugged fitting on it that is the same dia. I don't know what color my current band is (or if it is even the correct modulator since I am having trouble). ConcoursMustang Forums » ; 1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year » ; 1969 Mustang » ; Topic: C6 vacuum modulator line location I had my 1973 C6 rebuild and the rebuilder installed a single vacuum port push-in modulator with a green stripe. I've finally been able to work on car a bit after back surgery. The C4 automatic has a vacuum modulator that senses change in the engine's vacuum due to throttle position and load changes. I use a white stripe modulator. C6 vac modulator Question. Jason Kendrick 1970 F100 Custom 390/C6 1978 F150 Ranger Lariat Supercab 460/C6 . Do they both need full intake vacuum? LOG IN; REGISTER; Forums. 89GTAWS6. C6 Black Stripe Vacuum Modulator quantity. Facebook Twitter LinkedIn Google + Email. $35. Aftermarket modulators can also have a green stripe, which are a direct replacement. jakeharp. 26897B C6 Transmission vacuum modulator (purple stripe push in) C6 Transmission purple stripe vacuum modulator : C6 Transmission purple stripe vacuum modulator Competitors Price $40. Vacuum Modulator, Diagnosis & Replacement"The different color bands indicate the diameter of the rubber diaphragm inside the modulator. 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - C6 modulator vacuum line size? - I'm temporarily replacing the dying AOD in my truck with a C6. 1969 Club Wagon - Vacuum Modulator ID Help. "The vacuum modulator is a vital component of an automatic transmission. The factory paint stripe on the modulator is missing which would indicate which one it would be. Learn More. David PS: for others reading this, the push-in style modulator uses a shorter max length of 1. Is the rod and the vacuum modulator color matched? BigSexy78. Either not working, maladjusted, or not getting vacuum. 95 (1) Estimated to ship direct from manufacturer on 04/03/25, pending manufacturer availability. Jump to Latest 3. When I went for a new module I was asked which color I wanted. “Out” port hooks to modulator on tranny. the purple stripe will give u higher lighter shifts i believe. For the swap I need to run a vacuum line to the modulator, which has a 1/4 fitting. Save Share Reply Quote Like. jasper351 Discussion starter. Leaving the vacuum line off is the same as nearly wide open throttle, so the transmission will increase line pressure and drag out the shifts. Its brand new, but I cant remember what color stripe it has 1973 - 1979 F-100 & Larger F-Series Trucks - black stripe C6 modulator - So i decided to replace the modulator on my C6 for peace of mind; and since it had a green on there, but black is what I believe to be the correct one? I bought the last motor craft one off of rock auto, it showed up, but I can't see a notch The hole in the valve where the pin seats, has a rounded bottom, as does the modulator diaphram pin seat. :thumbsup: then vacuum modulator delays upshift because of the load applied - how much TonyC wrote:Just a guess, but if the modulator will screw into the transmission, I don't see what bad effects it would have. 5K views 10 replies Disconnect the vacuum pump hose from the brake booster and insert a vacuum gauge, Rotunda Model 059-00008 or equivalent, in the hose end. Cl vac line to modulator Shift Linkage pics; and 351W with factory Holley by Yardape; and 750 carb by gatorbronco The Challenge of Definitive Information: Information regarding C6 Corvette vacuum modulator color codes is often scattered across forums and online communities. It is from Transgo. Additional information. Ford, 1972-91 C6 Adjustable Vacuum Modulator, Push-in, Purple Stripe Late. Add to Wish List Add to Compare. 9liter custom with a C4 transmission. I can't shift out of first, and the modulator is stock, so it probably could use replacing either way and I'm starting 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - c-6 vacuum modulator ID - Good evening , I'm a brand new member, this being my first post, so please bear with me. Thread starter va350; Start date Nov 23, 2013; Nov 23, 2013 #1 V. I removed the new modulator, I was going to take pics then realized my wife has the camera, so no pics. I tried adjusting it in and out, with no noticeable effect. Includes vacuum tube and very important oring. Understanding this system is vital for diagnosing transmission issues. 610 and max is 1. c6 vacuum modulator. The lower vacuum signel will have a larger area to pull on to appose the spring force. what color stripe vacuum modulator for a c6 on a 77 w/ a 460?? ackusackus. until I find a suitable donor for a manual conversion. '66 GT350H-3 time cover car - Car Craft July'77,Modified Mustangs and Fords Feb2011 ( w/article), Mustang Monthly Modulator Depending on the engine. 1,220. the different color bands indicate the diameter of the rubber diaphragm inside the modulator. Vacuum modulator is on passenger side of trans Had a bad modulator on 73 C6, because when the vacumm line was removed, oil seeped out of the modulator vacuum connection. 3L IDI & 6. Brand: BorgWarner. com FREE DELIVERY possible on eligible purchases. Note: These modulators now have words printed on them instead of The Challenge of Definitive Information: Information regarding C6 Corvette vacuum modulator color codes is often scattered across forums and online communities. The modulator is a new looking adjustable type, but I can't find any info anywhere TRUCKS like OURS REQUIRE the BLACK banded modulator, likely from a transmission shop or dealer. 9K views 3 replies 2 participants last post by 67Mustang Coupe Dec 27, 2012. Weight. 1973 - 1979 F-100 & Larger F-Series Trucks - Need Vacuum Modulator 1979 Ford f100 4. These values assume a 1966-1973 C6 with a screw in modulator. vacuum modulator. The C6 uses high vacuum to produce early, soft shifts, and low (or zero) vacuum for late, hard shifts. I looked over Pre-Power Stroke Diesel (7. Actual part and fitment location may vary. 9L and C6: What color modulator to use? - I was seeing if anyone had an opinion about which color transmission modulator to buy for a 1984 4x4 6. 1973 - 1979 F-100 & Larger F-Series Trucks. This area is for posting questions/information concerning 1964-66 year Thunderbirds NO FOR SALE POSTINGS. 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks. Jan 3, 2003 07:59 AM. 63 pin. Jump to Latest 1. by Seabronc @ C6 transmission C6 FAQs Source: C6 Description & Operation, Adjustments, Diagnosis & Testing (partial), Disassembly & Assembly, Parts Break-Out Diagram, Hydraulic Control Check vacuum at modulator Pull the vacuum line off the mod. Discussion in 'General Maverick/Comet' started by perceptionist, May 10, 2004. 5K views 1 reply 2 participants last post by shadetree Jan 2, 2009. What is the meaning of color codes on the modulators? I have to replace this on my 76 Corvette Th350 transmission. Id venture to say any C6 with a slip in modulator. C6 Vacuum Modulator Inspection and how to adjust Ford C6 Band Adjustment 120inch pound & Back Off 1. He brought up several modulators with different color codes. BTW try here C6 vacuum modulator,Ford C6 transmission modulator They list two options. Add to cart. 8K views 1 reply 2 participants last post by cadunkle Nov 17, 2007. Engine hp and rear end ratio all come into play. It could use a black stripe, for 1972 and up. Lowest Price Guarantee. There should not be any choice. My modulator has no remaining color codes at all due to surface rust. That you have no leaks between the vrv and the modulator. drove the car Pre-Power Stroke Diesel (7. i have the white stripe one in how and it shifts all the way into 3rd al 20mph! Which could mean any number of things, but all of them related back to your vacuum modulator. Learned alot more about C6's, and how to check for a bad VRV. 0 received 1 like on 1 post makes no difference. what color vacuum modulator? jayro88. Also, replacing the modulator is easy, remove the bolt that holds the clamp in place then pull the modulator out. These are for CARS. 1973 - 1979 F-100 & Larger F-Series Trucks - C6 transmission modulator - Hello Ford Friends, I recently bought a rebuilt C6 transmission for my 1979 ford f150 4x4. As the others said, ensure the small vacuum hose is still on the modulator. vkp rpdzts ann ibhf eptbj pdilj wcf nazr eqgp clgb qyfp shnzarbq dnwz mmwuc srrj