Question about Volkswagen Jetta

2 Answers

94 Jetta w/2.0 engine overheats.I took it to a mechanic and he said my thermostat was fine.So what else could be causing it to overheat??And it does have a small oil leak too but I can't pin point it.

Posted by on


2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 784 Answers

Overheat due to insufficient water cooling. If there is a loss of cooling then there is a problem with the head gasket.
One thing to check is to take off the thermostate to run for a few days. Now it is in the summer so you would not have a problem with initial driving. If no more over heat then replace the new thermostate, it is not expensive.
While the engine is running press the upper hose to feel the water moving underneath.
If it is not then you need need to look at the repalcement of water pump and/or radiator. Pump may still working but the radiator got clogged up preventing cooling circulated. Good luck.

Posted on Aug 06, 2010

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has answered 20 questions.

  • Contributor
  • 144 Answers

Overheating could be anything in the cooling system. Thermostat is out, could be radiator, water pump, broken belts which cause the water pump to not move, cylinder head warped, cracked, or the cylinder head gasket.

Posted on Aug 06, 2010

  • 1 more comment 
  • bigalaskan82 Aug 06, 2010

    If it was the water pump wouldn't it be leaking water somewhere??

  • goldenglove1
    goldenglove1 Aug 06, 2010

    No, the water will not circulate, it will just lie in the coolant system.

  • bigalaskan82 Aug 06, 2010

    OK ... thank you very much!!!



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Temp gage is solid red, air conditioner is now blowing hot air. Filled coolant reservoir and it emptied while driving but mechanic found no leak with pressure test. Is this a thermostat issue?

I doubt it.
A faulty thermostat would cause the engine to overheat after a few miles of driving. A faulty cooling fan could cause the engine to overheat and also keep the ac from working.
A leaking head gasket could cause overheating, and loss of coolant, but would not affect the ac.

Mar 06, 2016 | 2011 Subaru Outback

1 Answer

Daihatsu feroza F300 94 model. I don't know much about cars or anything but I had a problem where the Copland from my radiator was bubbling and flowing back into the reservoir. I took it to the mechanics,...

if it has a viscous fan hub ( where you can turn the fan by hand with the engine stopped) have it replaced as that failure will cause the engine to overheat

Oct 10, 2017 | Cars & Trucks

1 Answer

I have a 2004 volkswagen jetta1.8 turbo . I replaced the 2 water pumps, and when i have the car in park after a couple of minutes it starts to overheat what might the problem be?

Make sure the fan is working. When it starts to overheat, the fans should be on. Fan failure is common. It could also be the thermostat, which is located under a black plastic piece on the bottom front of the engine. The thermostat is easier to replace, 2 10mm bolts.

Oct 27, 2010 | 2004 Volkswagen Jetta

1 Answer


Your temperature thermostat determines how hot the coolant should get on your car. These thermostats are about $15 at the auto store. They are prone to failure over time and will definitely fail if the engine overheats. The hardest part of changing the thermostat is removing the lower nut where the thermostat is housed... its in an awkward position and you will need a universal joint socket to remove it.

Jan 19, 2010 | 2000 Volkswagen Jetta TDI

2 Answers


You have blown a hose or a thermostat has stuck causing the engine to overheat, you may have blown a head gsaket as well it could be as simple as a radiator cap but suspect you blew the head gasket. SOrry hopes this helps, Be sure to tow it to the shop do not risk damaging the engine by driving it till you know what is wrong.

Dec 18, 2009 | 1996 Volkswagen Jetta

3 Answers

It is overheating in 32 degree weather.....I have checked to see if my radiator is gettign enough anti freeze and it's fine but i dont know why it keeps overheating

The engine overheat is due to inefficient cooling. Therefore, there is coolant in the radiator but if it doesn't circulate inside the engine water-jacket to remove the heat generated from combustion's chambers, then it still causes overheat. If this keeps happening then it can cause the engine head wrapped then leaking from the gasket as people called blowed head gasket. It could be: 1- Thermostat is not opened. 2- Water pump is not working. Before starting to replace parts, it needs to verify it it is the root cause of the problem. Take out the thermostat and run the engine to feel if there is water flowing inside the upper hose. A- If it is not then water pump is not working. B- If is, then run the car a few days without thermostat to see if it causes overheated. C- Running car without thermostat still causes overheat then there are some clogging up in the water jacket defeating the cooling efficiency--> Need a good flush. Good luck.

Dec 02, 2009 | 2003 Oldsmobile Alero

1 Answer

I have a 94 nissan altima that overheats. I

sounds like where the water pump meets the engine has warped or the gasket has been blown. Since the water pump has to come out anyway to fix it then i would suggest replacing the pump. It is 30 to 40 more.

Jul 09, 2009 | 1996 Nissan Maxima

1 Answer


replace the cap with the pressure rating recommended by the dealer it is probably over pressurizing the coolant system

Jun 12, 2009 | 2000 Volkswagen Jetta TDI

2 Answers

94 honda is overheating

I dont think the transmission has anything to do with your overheating problem...Check to see if there is water in the oil...If there is water in the oil then it could have a head gasket problem..Did you ever replace the thermostat? If it is stuck then it would also cause overheating...Excessive exhaust backpressure because of a clogged catalytic converter could also cause overheating..Also check belt tension and condition. A loose belt that slips may prevent the water pump from circulating coolant fast enough and/or the fan from turning fast for proper cooling...Another thing it could be is a faulty Water pump -- Any wobble in the pump shaft or seepage would call for replacement. In some instances, a pump can cause an engine to overheat if the impeller vanes are badly eroded due to corrosion or if the impeller has come loose from the shaft. The wrong pump may also cause an engine to overheat. Some engines with serpentine drive belts require a special water pump that turns in the opposite direction of those used on the same engine with ordinary V-belts... Also check the Fan -- With mechanical fans, most overheating problems are caused by a faulty fan clutch, though a missing fan shroud can reduce the fan's cooling effectiveness by as much as 50% (depending on the fan's distance from the radiator) which may be enough to cause the engine to overheat in hot weather or when working hard.

Mar 21, 2009 | 1994 Honda Civic

1 Answer

Finding Thermostat on 98 Jetta GLS

Its to the right of the water pump towards the bottom of the engine.. Follow your lower radiator hose. Make sure to get some G12 coolant from VW before you do it. If you mix the coolants they turn into a gel that will cause you to overheat.

Jan 05, 2009 | 1998 Volkswagen Jetta

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

208 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volkswagen Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22359 Answers


Level 3 Expert

81423 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8841 Answers

Are you a Volkswagen Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides