billy bronco

I just did timing belt and all the other recommended stuff, water pump, therm, belts, hoses. On the way to work today the temp redlined and then fell back some. Seems to go to half up to red and back to half now, running very HOT! I did see something about bleeding air from system (never seen this before) I this something I have to do for sure? How?

89sks

Yeah, you should do it. Someone correct me if Im wrong. Start the car with radiator cap off, let it run untill both fans come on this should correspond with thermostat opening also. Keep pouring water in till its full. On the VG engine there is a air bleed bolt near the pcv valve that you can open up to let little bubbles out. Then tighten it back down, and make sure the radiator is full. I have heard that on the VG, air bubbles will collect at the neck right where the temp sensor goes. There are also different temp thermostats as well and sometimes you can get the wrong one. Good luck.

billy bronco

I just checked fluid as she is cooling down, it did suck some in from the over flow tank but I think I need to do this bleeder think. How and when do you bleed? Car hot/cold/running ????? Man I hope this is all it is, I don't want to tear down agian. I bought therm from dealer, never questioned temp.

89sks

Let the car cool down enough that you can safely take the radiator cap off, then start it up let it run till it gets warm where the fans come on and thermostat opens, it takes a while, keep filling the radiator as it goes down and also loosen the air bleed bolt near the pcv vale, its right on top of the intake manifold on the VG, take that off and let it bubble while you are filling the radiator with h20. Then screw it back down and cap the radiator.

I believe that should do it but I may be forgetting something.

If you have air in it you can also hear the water swooshing around in the heater hose in the dash which is annoying.

Maxima-4DSC

iTrader: (1)

true , bleed the system and make sure you have the right thermostat in and that its in right. the wrong temp thermostat will do that easily. i dropped a 180 in my trans am and she heated up like a toaster, then i dropped a 160 in and she ran better. ind you the car was very fast and heavily modded. (.30 overbore, superam intake manifold w/ edelbrok runners, cold air intake, ported and polished heads, 1.7 roller rockers, lunati crank, forged rods, nitrous pistons, 11:1 compression, 75 shot nitrous, 1000 cfm throttle body, flowmaster mufflers, custom true dual exhaust, heavily modded 700r4 auto trany, manual reverse valve body, ect..hooker headers, blah blah blah however i got off track here. just make sure the dealer gave you the right one. It really seems that you just have air in the lines and after the pressure builds up it forces the fluid thru. thats why it builds up like that and then releases. good luck !!

subs1000w

jees you ever take that thing to the track

Maxima-4DSC

iTrader: (1)

never had time to get her to the track the person i sold the car to did and she ran 11's on soft street tires. however i think it could have gone faster on true slicks.

billy bronco

After car cooled it took 2 more quarts of juice, ran @ lunch and guage stayed right in the middle. Maybe she purged herself.......

89sks

Thats good to hear!