Question about 1988 Volkswagen Jetta

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1999 jetta overheats until heat is on full blast

My car overheats after twenty mins of stop and go traffic when I turn on interior heat the car goes back to normal temp

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  • 6 Answers

You should start by checking the thermostat for the radiator. It controls the flow of coolant to your engine. Turning on the heater allows the coolant to circulate through another type of radiator. You should also check your radiator fluid to make sure you have enough( the fluid should be changed around every 5 years).

Posted on Jul 03, 2013

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 166 Answers

SOURCE: jetta 1999 transmission fluid

the fluid goes in through a plug in the top of the auto it is not recommended that you check it as it take a particular type of fluid that only VW uses and the transmission is not ment to be serviced.
if the car is having trouble taking of the transmition might be about to fail our it might be low on fluid sagest to your boy friend that he checks for leaks and if he find one take it into VW to get repaird.
unfortunatly these cars are expensive to fix and your average machanical minded person dose not have the corect service tools to do so

Posted on Dec 19, 2008

  • 82 Answers

SOURCE: 1997 jetta td, coolant is leaking, but car is not overheating

look at all your hoses and the seams on your rad, you will find the seams at each end of the rad, see thats its not liking from ether side. locate and look around your water pump the gasget maybe bad, and be sure look at your drain valve, if its plastice change it to metal if you can the plastice can wear out faster and can become brittle

Posted on Feb 23, 2009

lemmingleejn
  • 173 Answers

SOURCE: WHEN I START THE CAR UNTIL IT HEATS UP TO NORMAL

Give the 'Lucas Transmission fix' a go. It seems expensive for the 'bottle capacity'.
But as long as the box isn't totalled, or if it's just plain 'old', it could very well be, worth it.
It's actually GAURANTEED to work.
I used it one time, in on of my '3rd gen' Honda preludes.
It was the 2 lt 16v Auto 4ws with the 'face lift' etc.
I bought the car for less than 100 bucks, and the milo' didn't work either.
I used that baby for Months and Months thanks to that stuff!)
Follow the instructions & Give it a blast.
Good luck with that, and please don't forget to rate:)

Posted on Jul 28, 2009

  • 80 Answers

SOURCE: I have a 2002 Volkswagon Jetta and just started to

In traffic there's no cooling. If there's no wind you should turn on the fan. :)

Posted on Aug 08, 2009

SOURCE: Flushing cooling system in 95 jetta, air inside car cold

There Must Be Any Bleeding Screw On Any Hose Of Coolant, After adding Coolant Keep Open that Bleeding Screw For A 15min With Idle Speed It Will Help To Remove Air From Cooling system., Then Check Temp Sensor OF Radiator That May Got Problem , Only Tow Things Could Be The Problem. Thanks

Posted on Jan 15, 2010

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1 Answer

My 1999 jetta keeps overheating. When I stop at the traffic light the temperature moves a little past the 190 mark. When I start moving it slowly goes back to 190. What might the problem be?


Does it make a difference if you increase RPM's when stopped at the traffic light? If so, you have a water flow issue. If not, most likely your radiator fan is not working properly.

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Heats up when stopped and cools down when running


Almost certainly a problem with the radiator cooling fan. When the car is stationary only the fan forces air through the radiator to cool the coolant. When on the move the car pushes air through the radiator. Next time is gets warm put the interior heating on to full blast. It will be uncomfortably hot but it will help take heat from the coolant. Check out that fan operation

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You probably just need to "burp" your cooling system. Run the car (from cold) with the radiator cap open and the heater on full blast. As the engine heats up and the water level goes down, fill it up until it stays full and starts to overflow.

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Check
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The humming is the noise the coolant makes when the car overheats and forces open the relief valve in the radiator cap and flows through the small hose to the recovery bottle., it you had all this work this done only 2 things can cause the issue, one is a problem with the cooling fan, the other is a blown head gasket, which I suspect is the problem, before you flushed the system was the coolant rusted?

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