Jetta - air in the coolant system?

[2 beer]

Thanx will do, should I do that with the top off? Its been like this for over a year, would it have worked itself out by now even if the top was on?

More then likely it would have worked out but now. Yes do it with the top off. If bleeding it doesnt fix it then I would go with a new T-stat.

[93SVT]

the radiator doesnt have a cap. The cap is on the "overflow" which is above the passenger front wheel.

Yeah, its that little round dingle berry, says its full but It didn't take as much coolant as I thought it would have, but then again this is the first 4 banger I've owned and first VW so what the fuck do i know, its ran fine for over and a half now since I put the radiator in, but just the other day while stuck in traffic i saw the temp needle move for the first time so it got me thinking that maybe its low on coolant and for whatever reason there is air trapped in there keeping coolant from going it, if it was low enough I could see it not touching the temp sensor until it go so fucking hot that it boiled up to it, that’s my lame theory, who knows if its right. I’ll be the first one to admit I don’t know jack about working on this car or newer cars In general and yes 2000 is new to me, newest car my poor ass has ever had.

[5.0stang85]

jesus titty fucking christ where should I go from here?

what would i know right??

i have only seen it done 30+ times at the shop i hang out at which he only works on VW/Audi

he did the exact same thing to my car(96 VW GTI VR6) to get a air bubble out of the heater core

fyi coolant is touching the coolant temp sensor cause its not to far away from the thermostat (same piece of plastic) if its not you have bigger problems (located on the driver side of the head or block) - mine is on the driver side of the head

[mnstang]

in a year it would have worked the air out.
all i do when i do a coolant flush is add the coolant to the top, put the cap on, go drive it hard with high revs for a mile or 2, you'll know when the pocket works out because you get instant heat. then come back and correct your level and you're done.
you can also do it by sucking the system with vacuum too.. then you don't have to do anything, you're done.
but in a year, anything would be worked out by now. sounds like a thermostat. when you replaced the radiator, something could have got in the system and is keeping it hung open, or it could be a coincidence, but either way...

[TitaniumGT]

LOL yeah do a pressure test like zac said! Pump more air into it if you thinks a bubble. Hes seen it done once or 30 times! I have a vacuum system that will pull all the air out of the system and replace it with coolant. only works if you drain the system all the way tho. You'll need an air compressor to use it tho. And I'm sure if it was a bubble it would have worked its way out. And I don't know if coolant will boil in a pressurized system.

[taank]

what would i know right??

i have only seen it done 30+ times at the shop i hang out at which he only works on VW/Audi

he did the exact same thing to my car(96 VW GTI VR6) to get a air bubble out of the heater core

fyi coolant is touching the coolant temp sensor cause its not to far away from the thermostat (same piece of plastic) if its not you have bigger problems (located on the driver side of the head or block) - mine is on the driver side of the head

no.

[taank]

in a year it would have worked the air out.
all i do when i do a coolant flush is add the coolant to the top, put the cap on, go drive it hard with high revs for a mile or 2, you'll know when the pocket works out because you get instant heat. then come back and correct your level and you're done.
you can also do it by sucking the system with vacuum too.. then you don't have to do anything, you're done.
but in a year, anything would be worked out by now. sounds like a thermostat. when you replaced the radiator, something could have got in the system and is keeping it hung open, or it could be a coincidence, but either way...

not entirely. but if you just do what golden plump and 2 beer said and it is still acting up. then i would do a thermostat. bleeding the cooling system is a hell of a lot easier than replacing the thermostat

[taank]

air bubble in heater core you need to pressurize the system with a pump to "bleed" the system

napa has them where they screw into the coolant tank

and please tell me your running G12 coolant and not the green stuff otherwise better plan on doing a head gasket

your an idiot

[mnstang]

your an idiot

lol, and you're not?

[taank]

lol, and you're not?

in comparison to you. no, i am a fucking rocket scientist.

[93SVT]

Took the cap off, drove around, added, did it again, everything is gravy now, for the record I did fill and leave the the cap off and attempt to let it warm up way back when put the bitch back together, I'm wondering if the tstat hadn’t opened yet, either way its good now, thanx for the help.

Anyone done plugs on these piles, to be honest I haven’t even took the engine cover off yet and don't even know where they are, also 2Beers, any idea how much a timing belt would run on this pile, its got a 120 on it now and I'm sure the prev owner didn't do one

[5.0stang85]

your an idiot

how ALL VW/ Audi's take special coolant or kiss your head gasket/s good bye

my GTI had green coolant in it at the time of purchase (december 07) on top of not having heat because of the green coolant and needed a head gasket within 3 months of buying it.

[fuzzy moonunit]

how ALL VW/ Audi's take special coolant or kiss your head gasket/s good bye

my GTI had green coolant in it at the time of purchase (december 07) on top of not having heat because of the green coolant and needed a head gasket within 3 months of buying it.

This is absolutely true. The greenish/blueish is a cool color, therefore you need the reddish G12 coolant for the heat to work because it's a warm color. I have the reddish G12 in my Jetta and the heat is great, but I need to switch it out now because my A/C isn't working; it blows hot air because of the coolant color.

Edit: Actually, I just realized if the A/C isn't working I should probably do a compression check.

[RyanM]

This is absolutely true. The greenish/blueish is a cool color, therefore you need the reddish G12 coolant for the heat to work because it's a warm color. I have the reddish G12 in my Jetta and the heat is great, but I need to switch it out now because my A/C isn't working; it blows hot air because of the coolant color.

Edit: Actually, I just realized if the A/C isn't working I should probably do a compression check.

[Iroc-Z]

how ALL VW/ Audi's take special coolant or kiss your head gasket/s good bye

my GTI had green coolant in it at the time of purchase (december 07) on top of not having heat because of the green coolant and needed a head gasket within 3 months of buying it.

WTF I hope your not serous? Because that is 100 percent incorrect.