This past weekend I finally got around to flushing my trans fluid and replacing with Quantum Blue ATF+ 4++IIA fluid. In talking with Brian, many people have asked him how to flush the trans with QB. Well here is a write up for you on my NAG1.
1. Purchase a 5 gallon bucket, several feet of clear 3/8" I.D. hose, a hose clamp, and a fuel sending repair kit from autozone (part# 800-233). This is a 16mm threaded piece that will screw into the NAG1 cooler line thermostat.
2. Assemble the pieces as in the pic below.
3. Locate the NAG1 cooler line thermostat, located on the driver's side of the oil pan, right above the steering rack. (In the pic below, the left side is toward the front of the vehicle).
4. Using a 18mm line wrench (or open-end), loosen the nut for the lower cooler line at the rear of the thermostat all the way and pull the line out of the thermostat housing. A little bit of fluid will come out, but not that much. (The pic below, is a view from the back of the thermostat). It's hard to get the wrench straight on. If using an open-end wrench be careful not to round the head of the nut.
5. Screw the hose assembly that you created into the thermostat housing where you removed the cooler line. Route the hose behind the steering rack, down and on the floor to the front of the vehicle.
6. Take the 5 gallon bucket and fill it with a gallon of water on a flat surface. Measure how many inches up the side of the bucket a gallon is. Dump out the water and dry the bucket. Grab a permanent marker, and mark the bucket where 1 gallon of water was. Mark the bucket equal lengths up for 2, 3, and 4 gallons as well. I made marks 1/2 way between gallons, so I know where 2 quarts is. Feel free to make them for each quart if you like.
7. Run the end of the hose into the bucket and either have someone hold it the whole time or secure it to the bucket somehow with out pinching it off. The trans pump on the NAG1 moves a lot of fluid, the hose will jump out the bucket if it's not held (I learned the messy way).
8. Open the hood, remove the trans filler tube plug and install a long rigid funnel. The NAG1 holds 13 quarts. Prepare your 13 quarts of QB ATF+4++IIA (shake it and place the containers next to you).
9. You will need an assistant for the next part. Have them start up the engine. Within several seconds, trans fluid will pump through the hose and into the bucket. Immediately start pouring QB ATF4++IIA into the funnel, while monitoring the level in the bucket. The idea is to add the same amount of fluid in, as the fluid pumping out. The fluid pumps out pretty quickly, I pretty much added each gallon of fluid as fast as they would drain through my funnel. After pouring in the last of the 3rd gallon (12 quarts), have your assistant turn the engine off.
10. Disconnect the hose assembly and reattach the trans cooler line to the thermostat housing.
11. Start the engine back up and check the fluid level. Use the last quart of fluid to top off the level.
Note: You may also drop the trans pan and change the filter first. Then just add your first gallon of QB fluid before starting the engine.
1. Purchase a 5 gallon bucket, several feet of clear 3/8" I.D. hose, a hose clamp, and a fuel sending repair kit from autozone (part# 800-233). This is a 16mm threaded piece that will screw into the NAG1 cooler line thermostat.
2. Assemble the pieces as in the pic below.
3. Locate the NAG1 cooler line thermostat, located on the driver's side of the oil pan, right above the steering rack. (In the pic below, the left side is toward the front of the vehicle).
4. Using a 18mm line wrench (or open-end), loosen the nut for the lower cooler line at the rear of the thermostat all the way and pull the line out of the thermostat housing. A little bit of fluid will come out, but not that much. (The pic below, is a view from the back of the thermostat). It's hard to get the wrench straight on. If using an open-end wrench be careful not to round the head of the nut.
5. Screw the hose assembly that you created into the thermostat housing where you removed the cooler line. Route the hose behind the steering rack, down and on the floor to the front of the vehicle.
6. Take the 5 gallon bucket and fill it with a gallon of water on a flat surface. Measure how many inches up the side of the bucket a gallon is. Dump out the water and dry the bucket. Grab a permanent marker, and mark the bucket where 1 gallon of water was. Mark the bucket equal lengths up for 2, 3, and 4 gallons as well. I made marks 1/2 way between gallons, so I know where 2 quarts is. Feel free to make them for each quart if you like.
7. Run the end of the hose into the bucket and either have someone hold it the whole time or secure it to the bucket somehow with out pinching it off. The trans pump on the NAG1 moves a lot of fluid, the hose will jump out the bucket if it's not held (I learned the messy way).
8. Open the hood, remove the trans filler tube plug and install a long rigid funnel. The NAG1 holds 13 quarts. Prepare your 13 quarts of QB ATF+4++IIA (shake it and place the containers next to you).
9. You will need an assistant for the next part. Have them start up the engine. Within several seconds, trans fluid will pump through the hose and into the bucket. Immediately start pouring QB ATF4++IIA into the funnel, while monitoring the level in the bucket. The idea is to add the same amount of fluid in, as the fluid pumping out. The fluid pumps out pretty quickly, I pretty much added each gallon of fluid as fast as they would drain through my funnel. After pouring in the last of the 3rd gallon (12 quarts), have your assistant turn the engine off.
10. Disconnect the hose assembly and reattach the trans cooler line to the thermostat housing.
11. Start the engine back up and check the fluid level. Use the last quart of fluid to top off the level.
Note: You may also drop the trans pan and change the filter first. Then just add your first gallon of QB fluid before starting the engine.