Question about 2000 Volkswagen Beetle

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1999 vw beetle. replaced thermostat and car still overheats. No visible leaks... Is it the water pump and how does one check.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: car overheats. have replaced radiator,thermostat.water

Question that I pose is:
Is the car overheating or are you assuming it is as the gauge is telling you that it is?
There are two cheap and simple things that are not mentioned in this post. There is an Engine coolant temp sensor which in all of their innane wisdom Saturn built with a plastic tip and we all know plastic melts fairly easily. This part is a simple fix as it needs a 13mm deep socket and that is it for tools to replace it and it is $10 - $15 for a new on with a copper tip. There is also an Engine coolant temp switch which sends information to the PCM to tell the gauge what the reading should be. Aslo $10 - $15 and a 13MM deep socket to replace. These are common issues with the S Series Saturns. I do however recomend that if you are going to replace them yourself that you empty the radiator of coolant as the sensor and switch are directly in the engine block coolant flow and will give you a nice little shower if you do not at least jack the drivers side up before replacing them.

Posted on Dec 02, 2008

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  • 35 Answers

SOURCE: '94 grand am cooling system failure

What engine do you have? One noted problem with the 4 cylinder engines is the reliability that at some point the intake will crack. I went through all the same things when I bought my 93. Drove off the lot, started overheating, replaced the thermostat and still had the problem without moving from the driveway. Look all around the intake. Make sure car is full of coolant and have the engine running. Most likely you will see a small coolant leak on the backside by the firewall. These cars were known for this problem. By the way if this is the problem make sure you take it to a reputable mechanic, make sure you get a new one installed. I had a used one and had the car back in the shop the next day. It then sat there for 2 more weeks while the used car dealer and I had a "discussion".

Posted on Jan 07, 2009

  • 1214 Answers

SOURCE: 98 328IS OVERHEATING AFTER CHANGING THERMOSTAT

Are you putting the thermostat in correctly? It it will not work backwards.

And to confirm that there isn't a different problem, take the thermostat out all together and see if it overheats.

Engine not fully warming up is not usually caused by the thermostat. Stats usually fail closed, not open.

You will want to check the water temperature sending unit or gauge after verify the water temperature with an external calibrated thermometer. You can attach and insulate the external thermometer to the housing where thermostat is located.


Reply back what you figure out. I will be happy to help you further.

Posted on Feb 03, 2009

alicantecoli
  • 22219 Answers

SOURCE: 2000 VW Beetle Overheating, Leaking Coolant, No Heat in Car

sounds like another plastic rad has bitten the dust,replace the rad or hose if its split and refill with antifreeze and see what happens ,if ok then good if not post here again for more advice

Posted on Mar 17, 2009

gripfitter
  • 557 Answers

SOURCE: 1999 Chrysler Sebring Overheating

running the vehicle without a thermostat is not a check. These cars have a computer control, running it without a thermostat or one in the wrong tempertature range will not let the system operate properly.

Posted on Sep 24, 2009

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3 Answers

My 1999 vw beetle over heats and shuts off after running for 10 minutes, what could be the problem but i changed the thermostats, radiator fan switch but still running?


MY 99 VW BUG DID THE SAME THING AN IT WAS THE WATER PUMP THE IMPELLER IS MADE OF PLASTIC AND HAD CAME OFF THE SHAFT INSIDE THE PUMP

Jun 02, 2012 | 1999 Volkswagen Beetle

1 Answer

Have a 1999 vw beetle, the water pump was replaced and the timing belt and serpentine belt. When we turned car on to drive all the anti freeze drained out. Where would it be draining from?


Hello,
There are several places it could be leaking out from. It could be come from a hose that was not properly tightned or from a gasket that was damaged or improperly torqued down. Is the coolant leaking externally or internally?

May 22, 2011 | 1999 Volkswagen Beetle

1 Answer

2000 vw beetle leaking antifreeze


Check out water pump for leaking. If it is coming out of overflow thermostat may be sticking.

May 17, 2010 | 2000 Volkswagen Beetle

1 Answer

I have a 04 VW Beetle with a 2.0. Just replaced the thermostat. Now it is leaking coolant badly. I have checked and seems to be comming from the middle of the engine. I have checked both the thermostat and...


If it is not coming out of any hose connection, and it is in the middle front area...it is most likely the water pump. You may be able to get a look at the pump, which is run by the timing belt. The pump mounts behind its rear cover unfortunately. Some water pumps have a small hole that you can check for water leaking out to indicate it is bad. If not, you will have to remove the timing belt rear cover to check the water pump gasket area for water leaks.
A head gasket is not likely unless you find water in your oil.
Good Luck!

Feb 24, 2010 | 2004 Volkswagen New Beetle Convertible

1 Answer

1999 2.0L VW Jetta coolant leak behind crankshaft pulley


The MK3 VW's are prone to failure of the "coolant flange", which is located to the right of the valve cover, and will have 4-5 hoses and or sensors sprouting from it.

I'd be willing to bet that this is the source of your leak, not the cam pulley.

The part is inexpensive.

Jan 18, 2010 | 1999 Volkswagen Jetta

2 Answers

99 deville overheats


check if there is visible smoke coming out of the exhaust after using your car for like an hour. If there is visible smoke your car's engine is probably leaking oil from the inside. You need to have your engine rebuilt. If the theres no visible smoke, try to check if your car is loosing water from the water reservoir really fast. Also, check if your radiator fan is still okay.

May 01, 2009 | 1999 Cadillac DeVille

4 Answers

2000 VW Beetle Overheating, Leaking Coolant, No Heat in Car


sounds like another plastic rad has bitten the dust,replace the rad or hose if its split and refill with antifreeze and see what happens ,if ok then good if not post here again for more advice

Mar 12, 2009 | 2000 Volkswagen Beetle

7 Answers

Overheating problem


water pump. water pump. water pump. i am a vw dealer tech and on 2.0 and 1.8t beetles the water pump impeller is plastic, and what happens is usually another component, fans, fan control module (under battery tray), thermostat, fails and because the impeller is plastic with just one overheat the plastic becomes brittle and shatters, pull the water pump out and you will see the impeller in 3 or 4 pieces. replace water pump and make sure t stat opens, fans come on (a/c off) and proper water pump flow.

Jul 29, 2008 | 2000 Volkswagen Beetle

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