adroga

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?

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.

adroga

Thank you for the reply, but I am just a little confused. After parking on a steep incline, do we need the cap off?

Paul89SE

Yes (radiator)

Jaybird180

Haynes said there's an air bleed screw (pp 1-25 diag 25.14). Can anyone verify this?

MrGone

iTrader: (30)

There is one on the VE, I would think there would be one for the VG aswell.

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.

DanNY

iTrader: (14)

upper intake manifold...
right by the PCV valve.
10mm bolt w/ copper washer

drstillpatient

iTrader: (2)

that bleeder bolt is totally useless...u gotta do the steep hill bleeding procedure.

bal4833

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.