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Overheating Issue in 2017 Trax

376 Views 2 Replies 3 Participants Last post by  Jesinator
2017 Trax with 137,000 miles - Decided to make a post while I’m sitting on the side of the freeway for the second time this week with an overheating engine. Two weeks ago my car started leaking coolant. I figured it was the water pump from reading the posts here mentioning the same area the coolant was leaking from so I spent swapped out the water pump. Hot air came out of the vents after 5 mins after I refilled my coolant. I get back on the road yesterday. I drive maybe for about an hour and up popped up service battery charging system followed by overheating warning. I pulled over and had my car towed home 13 miles. While waiting 2 hours for the tow truck, the hazard lights shut off, and my car had 100% no power. This morning, I went to AutoZone bright and early and bought a battery put in my car and automatically service battery charging system appeared but the car started sounding fine and figured it was something I had to be reset by computer and hopped on the road to get to work. 2 miles away from the house, I turn on the heat just to double check and it’s blowing cold air when the heat is supposed to be on. Not even a minute later, I get the overheating warning and pull over and here I am sitting on the side of the road. Is there something I should have done after swapping out my water pump? Any suggestions would be greatly appreciated. Thanks!
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Just a guess, the cooling system has air in it, there is a bleed screw on the radiator, towards the engine side and along the top. I forget which side it's on.
Filling procedures from my 2015:
1. Raise and support the vehicle. Lifting and Jacking the Vehicle
2. Tighten the radiator drain **** (1) to 2 N.m (18 lb in).
3. Install the underbody front air deflector. Underbody Front Air Deflector Replacement
4. Lower the vehicle.
5. Remove the vent screw (1) on the radiator and turn in one thread to allow venting of the cooling system.
6. Slowly add a mixture of 50/50 DEX-COOL® antifreeze and clean drinkable water to the surge tank until coolant is present at the vent screw (1). Approximate Fluid Capacities.
7. Tighten the vent screw (1) to 1.9 N.m (17 lb in).
8. Continue to slowly fill the radiator with a 50/50 coolant mixture until the coolant level reaches the base of the radiator surge tank.
9. Allow 30 seconds for the coolant level to stabilize and continue to fill the coolant filler neck until the level stabilizes for at least 2 minutes.
10. Start the engine and allow to the engine to idle in PARK or NEUTRAL with the parking brake engaged.
11. Slowly fill the coolant mixture until the level stabilizes at the base of the radiator surge tank.
12. Install the coolant pressure cap.
13. Raise the engine RPM to 2500 rpm for 30-40 seconds.
14. Shut the engine OFF.
15. Allow the engine to cool, remove coolant fill cap and repeat steps 4-10 until the coolant
level has completely stabilized within the radiator surge tank.
16. Inspect and if necessary, fill the coolant reservoir bottle as necessary.
17. Rinse away any excess coolant from the engine and the engine compartment.
18. Inspect the cooling system for leaks.
19. Top off the radiator surge tank if necessary.

All of that being said...I ALWAYS use my airlift vacuum filling tool. $130, never have to deal with trapped air. Worthwhile tool. The Trax has a trick to vacuum fill because of the heater hose connections. They need to be under tension to withstand vacuum so I use a bungee cord around the core support to pull them away from the firewall. Gets a decent vacuum seal.
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