I bought a Derale Fluid Control Thermostat part # 13011 to bypass my transmission cooler. Rebuild the tubes pressure relief valve to restore the tubes full functionality. High-Performance cooling assemblies. A detailed step by step account hosted by the Rialta Famous "Tx Pigeon" of how to install a Transmission Cooler for your Eurovan based campers. The purpose of this bypass valve is to bypass fluid during diverse conditions. The radiator cooler serves two functions. 15 product ratings - Ford Transmission Oil Cooler Bypass Valve F150 F250 Super Duty Excursion OEM NEW. After giving it a good examination I noticed they had bypassed the stock transmission cooler that is built in to the radiator and just ran direct lines from the new cooler. Your email address will not be published. The factory bypass cooler valve is located under the air intake assembly. The factory bypass cooler valve is located under the air intake assembly. I had them install a transmission cooler as well. The valve assembly simply pulls out of the tube. Will not work on E-Series 4R100 Cooler Bypass. $99.00$99.00. Reason being, the radiator can act as a heater and warm the transmission fluid higher than where you may be comfortable with it operating (200 + degrees), especially if you face a lot of stop and go traffic or other harsh driving conditions. The Dieselsite cooler bypass delete for the 4R100 comes with the bushings to eliminate the bypass tube, but also with new banjo bolts with no spring and check ball to allow 100% fluid flow to the cooler. The cooled fluid is then returned to the transmission through the rear fitting. You could be dealing with a faulty cooler thermostatic bypass valve (Figure 2). Get it as soon as Fri, Aug 7. Integral aluminum cooling fins aid in passive cooling of the block and fluid. $64.99. I looked down inside the tube to inspect the ball seat. Broke down in Georgia, TRYING TO GET HOME,TEXAS!!!!!! Transmission Bypass. HOWEVER,  the new spring was a lot stiffer,  and took a lot more force to compress it. This kit eliminates the bypass tube off the side of the 4R100 transmission, forcing ALL of the fluid to be sent through the transmission cooler. The RevMax 68RFE Transmission Cooler Thermostatic Bypass Upgrade is a direct bolt in replacement. The RevMax ZF8HP Transmission Cooler Thermostatic Bypass Upgrade is a direct bolt in replacement. From United States +C $39.62 shipping. The heat is transferred from the medium to the ambient air. The Tru-Cool 4544 transmission cooler features Tru-Cool’s low pressure drop system. From 1999-2003 the Ford 7.3L Automatic Transmission (4R100) had an external cooler bypass tube that redirected transmission fluid from the pump output back to the return line of the transmission. Which is a great idea in theory. C $132.01. The Sonnax instructions are simple. $99.00$99.00. The easiest way to eliminate the tube is to replace the tube with special spacer bushings and re-use the original banjo bolts. So it’s been two years now, and I still haven’t gotten around to it. I just had my automatic transmission rebuilt in my 2005 rubicon. There also have been numerous melted down transmissions due to the bypass valve sticking in the cold closed position. Almost gone. 68RFE Transmission Cooler Thermostatic Bypass 2013-18 The 2013 and new 68rfe equipped Ram trucks have always been known to run hotter than then their early predecessors. With our bypass upgrade, you can use room temperature fluid to clean out your cooler at any time you wish without any special tools! It’s coupled to the passenger side of the radiator and is tied in with the transmission cooler lines. This medium duty trans cooler utilizes a plate and fin style 11″ x 9.5″ x 3/4″ construction with standard 3/8″ barb fittings. Another way to prevent getting this page in the future is to use Privacy Pass. If the pressure relief valve is operating  normally, and the cooling system isn’t restricted,  then there will always be full flow through the cooling system. F53 – When do you decide to fix broken exhaust studs, Replaced failed Intellitec dual thermostat ECC with Waiter ECC thermostat, Loose fuse-holder in BCC causes weird electrical issues, Monitor 4R100 transmission temperature using Torque App, Replace water heater check valve with manual valve, Different fueling strategy saved $150 on recent trip, Low voltage from 3 stage converter causes problems, Inexpensive wifi network for the Southwind, Closed furnace vents causes furnace burner to cycle on and off, F53 – Repair instrument panel light switch, F53 – Cleaning MAF (Mass Air Flow) sensor, Rear A/C unit can be run on separate 20 amp shore power circuit, F53 – Whats that hole on right rear of my engine, Will a 120 volt TV work on 12 volts DC – MAYBE, F53 – 4R100 transmission cooler bypass tube, How to raise Power Gear jacks one at a time, F53 – Replace transmission shift lever (OD button), Need to upgrade Coach 12 volt power system, Upgrade report – A little more power and better fuel economy, TOAD – 2003 Saturn Vue – Rear wheel alignment (broken bolt), F53 – Transmission filter change and flush, Been a busy year working on the Southwind, Replace sleeper sofa with recliner loveseat, BCC – Coach battery disconnects immediately after its connected, F53 – Repairing broken exhaust manifold studs, Reversing bath door so it swings other way. Unless you can come up with a way to plug/restrict cooler flow,  then deleting the tube entirely makes sense.. Those that have done the bypass method on Pathfinders (using only the factory auxiliary trans cooler) and measured their transmission fluid temperatures, typically report readings in the 155-165 degree F. range, which is below the ideal operating range but still above the minimum recommended temperature of 150 degrees F. Fits: 99-04 FORD F150 LIGHTNING. [/ QUOTE ] I said the return line and bypass line were about the same temperature. 180 +-. There also have been numerous melted down transmissions due to the bypass valve sticking in the cold closed position. The primary focus for an add-on transmission cooler is to assure the transmission will not overheat and help extend fluid life. For the Ford 4R100 transmission, the Bypass Eliminator kit allows for the removal of the cooler bypass tube assembly which has a history of failing and bypassing the transmission cooler when you need it the most. Avoid damaging your transmission with a transmission cooler, which helps to cool the ATF. A major selling point for LinCo’s bypass valve is that you don’t have to break any transmission lines loose to install it. Great ..... , however, the valve opens, allowing 90 percent of the oil to bypass the cooler and head back into either your engine or transmission. Will an extenal cooler help(yes) will it hurt(no), do you really need one maybe/maybe not. Before starting, I open the package and inventoried all the parts. True cool transmission coolers do have an internal bypass to warm the fluid , but they cant warm the transmission fluid as fast as the engine All you need is GM part# 3952301(adaptor) and (2)GM part# 3951644 bolts. $296.99. If for some reason the transmission cooler circuit becomes plugged or restricted,  the tubes pressure relief valve opens and allows transmission fluid to flow through the tube instead of through the cooling circuit. Opens fully at approx. It took a lot of force to compress it. Anyways my radiator cracked on the way to work. Watch the ball as it will roll away. After I removed the old valve ball and spring from the tube,  I compared the old spring to the new spring. Only 4 left in stock - order soon. Anyways my radiator cracked on the way to work. The transmission cooler has a thermostat that opens and closes to (1) allow hot transmission fluid to flow through the cooler when it's hot, and (2) to bypass the cooler and send cold fluid back to the transmission to allow it to reach operating temperature. Read on to learn more about the top transmission coolers on the market and tips for purchasing one. No lines are cut, nothing is altered. Warm your engine faster with this thermostatic bypass system. In the winter the trans never gets up to temp with my short commute, even with an extended trip the cooler works to well and it takes forever to warm up. The 2005 - 2006 Nissan Pathfinders have had issues with the radiator leaking and the radiator coolant being mixed with the transimission oil and destroying the transmission. 2013-2018 Dodge Cummins 6.7L 2500-5500 w/ 68RFE Trans - Debris in the stock cooler bypass valve can cause it to jam the internal valve keeping it in re-circulation mode. The BD Cooler Bypass Delete keeps the transmission cooler operational all the time and eliminates this failure prone item. when the fluid is cold,  the tube bypasses the cooler. 68RFE Transmission Cooler Thermostatic Bypass Upgrade. A transmission cooler is a flow-through device and is not designed specifically for any particular year, make and model. Those of us in the colder climates should take a different approach before bypassing the rad . Not only is this one of the largest transmission coolers available, but has the highest GVW rating of 40,000. Jump to Latest Follow 1 - 18 of 18 Posts. From the factory, your truck has a transmission cooler bypass so that when cold, the fluid bypasses the transmission cooler for faster warm up. ATI SCS-30 Cooling System for Powerglide Transmissions. I had them install a transmission cooler as well. I laid all the parts out, specifically the different size o-rings so I could identify the different sizes when they are called out in the instructions. Wondering if anyone has installed the transmission cooler upgrade and bypassed the radiator. A transmission cooler is a must, but I have no need for a thermal bypass. If you look on the Ford truck enthusiast forums, there’s a great deal of discussion regarding the cooler bypass tube and the integral pressure relief valve. Overhauling the tube – Remove the cooling lines from the tube, then remove the banjo bolts that hold the tube to the transmission. BD Diesel 1061527 Cooler Bypass Delete … CONCLUSION – I don’t think I was having any problems with the original valve,  but it was 20 years old, so I decided to rebuild it. Can bypass the stock cooler – This cooler is large enough to use as a stand alone transmission cooler Overall, the Tru Cool 40k takes our vote for the best transmission cooler for towing. With our bypass upgrade you can use room temperature fluid to clean out your cooler at anytime you wish without any special tools! Cloudflare Ray ID: 60d61a4f9b78ccc2 The cooler bypass tube has a built in pressure relief valve built into one end. The old spring wasn’t what I would consider worn. The RevMax 68RFE Transmission Cooler Thermostatic Bypass Upgrade is a direct bolt in replacement. I'm thinking I'd hate to have this new (15,000 miles) transmission fail when/if the rad fails and puts antifreeze in my AT, so I'm thinking of a bypass. That will take the place of the exsisting oil filter adaptor for the cooler lines. With our bypass upgrade you can use room temperature fluid to clean out your cooler at anytime you wish without any special tools! In a cold weather condition it brings the transmission up to operating temperature faster. That will give you some peace of mind. No lines are cut, nothing is altered. Please enable Cookies and reload the page. The transmission fluid cooler is the same design as in the Edge, Flex, newer Explorers, Taurus, etc and is prone to leaking. A common misconception is that this tube is used to control transmission fluid temperature,  i.e. So not finding anything using search (as usual), but is it wise to bypass the radiator cooler for the transmission cooler lines? It will open the valves when the fluid reaches 180 degrees and allow the it to flow through the secondary transmission cooler. S P O M N W S O R Z E M W D S Y X G Z R. NEW OEM T/O TRANSMISSION OIL COOLER THERMAL BYPASS VALVE VOLT 16-19 [AH818-08] The problem was a malfunctioning thermal bypass valve. The air cooler may also cool the fluid beyond the optimal operating temperature. Revmax Transmission Cooler Thermostatic Bypass Upgrade For 2013-2018 Dodge Ram 6.7L Cummins Diesel 68RFE. 56 sold. Top Rated Seller Top Rated Seller. After giving it a good examination I noticed they had bypassed the stock transmission cooler that is built in to the radiator and just ran direct lines from the new cooler. Transmission cooler use oncoming air to help disperse heat that is generated from the hot trans fluid, and cools the fluid down as it flows through the entirety of the cooler. Free shipping . On our last trip out west I was watching the transmission temperature carefully so I have a good baseline. Once the bypass tube is deleted, this check ball and spring are no longer needed. Frig doesn’t work on gas when its warm outside. The tube is attached to the side of the transmission with the same flow-through banjo bolts that are used to attach the transmission cooling lines.. Fluid comes out of the front fitting and goes to the transmission cooler(s). Southwind by Fleetwood – sporting its new paint job. External thermal bypass for large coolers used in cold climates (32 degree -). After considerable time researching the two options, I decided that both options were valid. 3 product ratings - ATS Transmission Cooler Bypass Block For 2013-2019 6.7L Cummins 68RFE AS69RC. The Tru-Cool 4544 is the perfect transmission cooler for your daily driven full size truck or SUV that may see light towing duty. Buy It Now. Simply disconnect your old lines and install them into our new bypass. 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