1999 Volkswagen Beetle Overheating

142,112 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC
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CRMMOMOF3
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  • 1 POST
We have replaced radiator, thermostat, water pump, timing belt and goose neck. What could be the problem?
Mar 27, 2014 at 11:10 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
pressure check coolant system for internal leak like a head gasket.
Mar 28, 2014 at 12:11 AM
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EXOVCDS
  • ✓Experienced Mechanic
  • 1,882 POSTS
There are 3 little green fuses on top of the battery... remove them and check them for burnt terminals.

If the fuses are OK, check your cooling fans by applying battery power to the fan harness plugs... the fans could be burnt out.

Thomas
Mar 28, 2014 at 11:28 AM
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EXOVCDS
  • ✓Experienced Mechanic
  • 1,882 POSTS
Are you getting coolant flow BACK into the reservoir when the engine is running? You might have an air pocket in the engine.

Sample of good flow:
www.youtube.com/watch?v=SJN3biTfdGE

Sample of bad flow:
http://www.youtube.com/watch?v=thcwatH_BpI

If you have NO flow... check the small return hose for blockage (since you have a new water pump, it is doubtful that your pump is bad).

Thomas
Mar 30, 2014 at 2:04 AM
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