bleeding coolant system
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Joined: Jun 2003
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bleeding coolant system
Is there a bleeder screw for the coolant system in a 93 max gxe?
I think i have some air bubbles in the system and subsequently my heater doesnt warm up enough. If there isnt, would running the engine with the radiator cap off do the job or is it more complex than that?
I think i have some air bubbles in the system and subsequently my heater doesnt warm up enough. If there isnt, would running the engine with the radiator cap off do the job or is it more complex than that?
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Joined: May 2003
Posts: 201
The only way to get the air out is the radiator. After 91 Nissan lowered the heater core so it shouldn't be too difficult for you. Just park on a steep hill and run the engine at around 1,500 for atleast twenty minutes. This will open up the thermostat and release air. You can do it from in your car and see under the hood when it's propped open. Just add coolant to the appropriate level in the radiator and the overflow tank.
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Joined: Nov 2000
Posts: 258
Originally Posted by Paul89SE
The only way to get the air out is the radiator. After 91 Nissan lowered the heater core so it shouldn't be too difficult for you. Just park on a steep hill and run the engine at around 1,500 for atleast twenty minutes. This will open up the thermostat and release air. You can do it from in your car and see under the hood when it's propped open. Just add coolant to the appropriate level in the radiator and the overflow tank.
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Joined: Dec 2002
Posts: 427
The VG has one. It's mounted on top of the intake, towards the rear, kind of above where the heater hoses leave the engine and head for the firewall. I just did a block heater, flush and fill, and found that I still had to take the rad cap off and let the air escape even after using the stupid bleed bolt.
Originally Posted by rcy
The VG has one. It's mounted on top of the intake, towards the rear, kind of above where the heater hoses leave the engine and head for the firewall. I just did a block heater, flush and fill, and found that I still had to take the rad cap off and let the air escape even after using the stupid bleed bolt.
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Joined: Jan 2004
Posts: 12
I used the bleed bolt last weekend. I initially filled the car with the bleeder removed, then drove until hot, then cracked it open and left engine running with climate control set to flow through heater core. I did not remove the bolt, just opended it and watched for air bubbles. When the bubbles stopped I closed it up. No problems so far. You definitely don't wont to turn it out far enough for hot air/coolant to blow it out. My car still has a little sticker near it that says don't open when engine is hot. That is how I figured out which bolt it was.
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