2003 chevy silverado transmission cooler line replacement

Our Address. Kings Mills, OH Hello everyone Hope all is well. Has anyone done transmission cooler lines on a chevy silverado classic? I purchased new lines they go to radiatorfrom transmission. I actually gave it some thought of cutting them near tranny somewhere and flare the ends and do same with my new ones flare ends and hose them. What have you experienced with those? Thankyou in advanceā€¦ Mike.

Yeah, those cooler lines are a PITA to replace. The best way is to lower the trans by removing the rear mount and support. When you cut and join any type of lines there is always the potential for leaks. Those clips are tiny so be careful if you remove them. There is a special tool for them but I have never seen one that works worth a crap.

Make sure the new lines are clipped in tight and that the plastic disc if used is pushed all the way on to keep them in place. Thanks for the reply bud, Yeah id hate to cut the lines but sure did seem more logical if u know what I mean.

Of course remove drive shaft also right? How much access did it give ya lowering tranny? Front exhaust get in the way? Thanks a bunch, sure looking forward to that one. U can use a pick tool on those clips quite well. I take the axle bolt out and keep only teh lower bolt on the lef side to the diff rotate and you get all the clearance require to do the job.

If you have 3 line rather than 2. I ve seen apprentice trying to get the clip out when they think they would save time working on the vehicle as is. If you can avoid to cut the line, do so.Skip to main content. Filter by vehicle:. Filter Results. Enable JavaScript to use the part finder, or see our list of vehicles. In"Dodge Ram" was rebranded as "Ram". To add Ram trucks for and beyond: 1. Select the vehicle year. Select Ram in the Make menu. Your Garage 0.

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2003 chevy silverado transmission cooler line replacement

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Band Anchor Pin. Bearing Kit. Boost Valve. Bushing Kit.Chevrolet truck transmission cooler lines keep your transmission from overheating during hot summer days when you're stuck in traffic with the air conditioning blasting. They transport the automatic transmission fluid away from the hot gears of the transmission.

The fluid cools slightly during the movement through the lines before returning to the transmission. Without such a cooling mechanism, the transmission fluid can become extremely hot and cause the Chevy's transmission to break down.

When automatic transmission fluid gets to a certain temperature, its viscosity changes and the liquid thins considerably. The fluid no longer properly lubricates the transmission's moving parts, and the Chevy's gears can either stick or not shift at all.

As a lubricant, the transmission fluid also cools the transmission to keep it from warping and bending. The cooling lines help the fluid to chill by removing it from the hot transmission and allowing it to pass through a cooler zone.

This cooling also prolongs the life of the fluid. However, like all tubing in the car, the transmission cooling lines can leak, causing the transmission to overheat and fail if you do not replace the lines immediately.

Buy cooler lines that are designed for your Chevy model. Chevy trucks require two separate lines--a feed line and a return line--that are bent into certain shapes to fit the underside of the truck.

While standard brake lines can be modified to fit the Chevy, they are usually too short for the job and require extensive rerouting of the transmission cooler lines. If you want the most efficient cooling system for your transmission, consider adding a second cooler in addition to the factory-installed one. This will ensure that your automatic transmission fluid never becomes too warm, prolonging the life of the entire transmission considerably.

Since the disconnected lines will likely weep fluid, place a drop cloth on the ground after raising the Chevy with a jack. Drain the transmission fluid into a pan and reserve it to replenish the system afterward. After locating and removing the existing cooling lines from the transmission and then the radiator, verify that they match the replacements exactly. Since hard tubing is more prone to leaks if bent excessively, it is important to bend the tubing as little as possible to maintain the original shape.

Install the top line first to avoid blocking access to it with the lower line. Finally, install the bottom line and tighten all the connections with an adjustable torque wrench.

DIY Replacement Chevy Transmission Cooling Lines

Refill the transmission fluid, and test the lines for leaks before driving the Chevy. This article was written by the It Still Runs team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Runs, contact us.

Replacing Cooling Lines Since the disconnected lines will likely weep fluid, place a drop cloth on the ground after raising the Chevy with a jack.

References KeystoneKrawlers. About the Author This article was written by the It Still Runs team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.On a Chevrolet truck or car running a V6 or V8 engine, a set of transmission cooler lines typically runs from the front of the vehicle by the radiator into the transmission.

2003 chevy silverado transmission cooler line replacement

This small radiator helps to cool the transmission fluid in the same way the radiator drops the temperature of coolant for the engine. Transmission cooler lines typically last for years. It takes time for vibrations, corrosion and things like that to damage them. In this case, the project vehicle is a Chevrolet Silverado with a 5. Unscrew the marker lenses from the grill using a Phillips-head screwdriver, and twist out the bulbs in the lenses to remove the marker lights from the grill.

Reach inside of the marker light holes to access the tabs on the bottom of the grill which keep it in place, then push them down and pull the grill off of the truck. Lift up the front of the vehicle using the jack and secure it on jack stands.

Make sure the vehicle is completely secure on the jack stands before you crawl underneath it. Place the drain pan underneath the core support of the vehicle.

Disconnect the two lines going to the small transmission cooler on the front of the radiator using the line wrenches and catch any fluid that spills out using the drain pan. Then disconnect the lines from the transmission using the line wrenches. Twist the lines from underneath the truck to maneuver them around the radiator, then the engine, until they're completely out of the truck.

This article was written by the It Still Runs team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Runs, contact us. Step 2 Lift up the front of the vehicle using the jack and secure it on jack stands. Step 3 Place the drain pan underneath the core support of the vehicle.

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CHEVROLET SILVERADO 1500 Transmission Line Adapter Fittings

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2006 Tahoe Transmission Cooler Lines Replacement

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2003 chevy silverado transmission cooler line replacement

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2003 Chevrolet Silverado 1500 Auto Trans Oil Cooler Line Connector

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