No Heat at Idle or Low Speeds. I'm Freezing!!! - Nissan Forums : Nissan Forum
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#1 Old 12-23-2008, 04:15 PM
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Exclamation No Heat at Idle or Low Speeds. I'm Freezing!!!

This ironically had to happen to me this past Friday during the snow storm that we had.
I was at a crawl for 2 hours the whole way home from work (21 miles) and barely any heat came out of the vents.
I was freezing, my windows were fogged up, and nothing I tried worked.

I finally noticed that once my rpm's reached 2k and higher that I could feel some heat. So then I drove in 1 & 2 gear to get some heat into the car.

From that day, when I proceed to warm up my car it won't blow out any heat at all until I start driving.

Has anyone experienced this?
Could there be a more inconvenient time for something like this to go wrong?
What's wrong with my car?

Any help greatly appreciated before I'm forced to resort to a royal holiday raping by the local stealership.

Thanks for any input and Happy Holiday's!

Pete


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#2 Old 12-23-2008, 05:01 PM
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Quote:
Originally Posted by AltimaPimpin View Post
This ironically had to happen to me this past Friday during the snow storm that we had.
I was at a crawl for 2 hours the whole way home from work (21 miles) and barely any heat came out of the vents.
I was freezing, my windows were fogged up, and nothing I tried worked.

I finally noticed that once my rpm's reached 2k and higher that I could feel some heat. So then I drove in 1 & 2 gear to get some heat into the car.

From that day, when I proceed to warm up my car it won't blow out any heat at all until I start driving.

Has anyone experienced this?
Could there be a more inconvenient time for something like this to go wrong?
What's wrong with my car?

Any help greatly appreciated before I'm forced to resort to a royal holiday raping by the local stealership.

Thanks for any input and Happy Holiday's!

Pete
There's nothing 'wrong' with the car really. You have big air bubbles trapped in your coolant system. I would park the car on a moderate incline (nose higher), open the radiator cap, run the engine, and top off the coolant as the bubbles come out.

If not, you can get a mechanic with a vacuum coolant flush tool to completely vacuum out the system, and proceed to add new coolant.

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#3 Old 12-23-2008, 05:21 PM
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Is this a safe process to perform by yourself?
Does the engine have to be cold, warm, in-between?

If I choose to have this done, I would just ask for a regular coolant flush at the mechanic? Or is this a specific process with a specific tool that some mechanics might not have.

I have a really good Jiffy Lube here in the area, do you know if they would be able to do something like this?

Thanks a lot for your input, it made me feel so much better.
I'm literally broke right before christmas so this is very ill timed.

Thanks again

Pete


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#4 Old 12-23-2008, 05:25 PM
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It's air trapped or it's your thermostat. Try burping the air and adding coolent first.


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#5 Old 12-23-2008, 05:33 PM
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By "Burping the Engine" do you mean performing the procedure that firemoth mentioned?
Parking the car on a moderate incline, running the engine, removing the radiator cap and adding coolant as it bubbles?

I don't want to worsen anything, so I want to cover all my bases before I try this tonight after work.

Thanks for the help.
This is good.
I need heat.

Regards

Pete


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#6 Old 12-23-2008, 06:09 PM
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yes. Just like firemoth said. It should be easy for you to do yourself.


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#7 Old 12-23-2008, 06:15 PM
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Awesome.

Thank You Very Much.

I'm gonna try this tonight after work.
Hopefully this will bring back some heat.

Should the car be warmed up?
Or is it better that the engine is colder?

Thanks again

Pete


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#8 Old 12-23-2008, 06:24 PM
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Try both ways cause the thermostat will close when you try and make heat. Especially with a cold engine. You might have to loosen the cap on the overflow tank.
Look and see if it is full or empty. Should be close to empty if running correctly.
Be careful opening the radiator if it is hot!!!!!!! You will get burned!!!!!!


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#9 Old 12-23-2008, 08:22 PM
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Thanks Guys, I really appreciate the help!

Happy Holidays!


Regards

Pete


2005 3.5SE (Polished Pewter) 5AT Berk WAI AT Grounding Kit NWP Vias Delete Magnaflow Mufflers Racingline Y-Pipe (cat delete) KYB GR-2's Eibach Pro-Kit Stillen FSB/RSB SS Brake lines Hawk HPS Pads SE-R Tails AT S5 Grill 35% Tint Debadged
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#10 Old 12-23-2008, 09:16 PM
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I have this same exact problems for a few yrs not. I've gotten My cooling system Flushed at least once a yr cause this ALWAYS happens to me every yr... Why am I getting Air in my Cooling system Religiously ?

I"m tired of Paying Valvoline $60 everytime to FLush My Cooling System So I"m going to Try this procedure as Well but would this be any better than Flushing My system ?

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#11 Old 12-24-2008, 12:08 AM
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I had the same sort of issue and a whoooshing sound everytime I started my car. I just filled the reservoir up to the max line a few times (as the cooling system ate it) and it fixed my problems. If that doesn't work you could have a bad thermostat (stuck open) and can replace that yourself for like $20.

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#12 Old 12-24-2008, 12:15 AM
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it sounds very much so like a stuck open thermostat to me.
try burping it and tapping the t-stat housing with a mallet. sometimes you can unstick a sticking thermostat.

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#13 Old 12-24-2008, 02:40 AM
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Hello All

I have a 2005 Nissan Altima 2.5s. When i start my car in the morning, it blows cold air even when it's been idling for 10-15 minutes. I had coolant flush done this past summer. Only when i drive 5-6 minutes do i experience comfortable level of heat.

Just like above members, my heat goes up with rpm, however after driving for a while stays constant. We had 3 snow storms in Toronto in the past week, frigid temps, please help me!
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#14 Old 12-24-2008, 04:32 AM
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Check to make sure your getting decent coolant flow into your heater core. These lines sometimes get plugged up near the thermostat.

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#15 Old 12-24-2008, 02:58 PM
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I have the same problem, looked it up a few days ago and came across this Nissan Service Call. I haven't tried it yet, I'll probably just take it to the shop

LINK TO FULL DOCUMENT: NTB02-047c.pdf (MediaFire - Document taken from NissanHelp.com)

Quote:
20022006 NISSAN ALTIMA; POOR HEATER PERFORMANCE

Air from the heater on an Applied Vehicle:
Takes a long time to warm up after an engine cold start, or
Output air cools down and is not warm enough while the engine is at idle, or
Output air is not warm enough at any engine speed

2012 Camry SE V6
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