Question about 2000 Volkswagen Jetta TDI
I doubt that the water pump would be faulty:- go through this checklist first.
I assume motor tune or other mechanical condition is not causing the problem.
When engine running, ensure no engine combustion gas bubbles in coolant resevoir (if so, the head gasket is blown).
Check radiator cooling fans are operating ok (as required when car warms up) - if not check
2) relay operation,
3) heat sensor switch.
Check for collapsing (soft) coolant hose on suction side of waterpump when engine revs above idle.
Check the coolant pressure cap is serviceable & of correct rating,
Ensure cooling system is correctly filled, bleed off any airlocks as necessary,
Check radiator cooling core is not blocked internally or externally.
Posted on Sep 29, 2009
Well that would cause the issue if you want to know where it's at you have to take the timing belt cover off to change the pump and if you do that I would say change the timing belt at the same time because it can be a pain in the rear so times so it's easier to just have it open once.
Posted on Sep 29, 2009
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Posted on Jan 02, 2017
SOURCE: 96 jetta 2.0l still overheating
so u pretty much replaced everything there is that could be the problem,fans turn on right??pump is working right??thermo is new right??ok so during the process of changing every thing you could have trapped air pockets in the cooling system ive seen this numerous times you can start there its the cheapest start,1st remove the radiator cap,2nd turn heater on high setting and temp to heat max, 3rd start ur car let the system cycle thermo has to open and close at least 2x's water is going to overflow to the ground its ok just dont lketr it empty youll see bubbles like air comming out let it run like 15min like this,turn the car off let it cool then place the cap back on make sure the seal is ok on radiator cao too!!hopefully thats all u need if not u may need a head gasket repaired they sell a green liquid at kragen oriely for blown head gaskets its like 25.00 it works pretty good for about 6000 miles to 10,000 miles MAKE SURE IF U USE IT FOLLOW ALL DIRECTIONS!! GOOD LUCK
Posted on Nov 24, 2009
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