Question about 1996 Volkswagen Jetta
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Posted on Jan 02, 2017
Check for a switch at lower part of rad. Should see a wire harness & plug on a sensor at bottom of rad. This sensor/switch also operates fan on/off according to coolant temperature. You may need to disconnect battery to get at it safely.
Posted on Jan 16, 2009
My friend you are faced with a catch 22 problem. The first thing I would like to know is, who installed the alarm system? Did you do it or was it professionally installed. If it wwas professionally installed I would go right back there and discuss the problem with them. It very well could be a defective unit. If you did not have it installed professionally I would disconnect the alarm and see if your battery still get's drained.If so, then the alarm is not the culprit, and you have some hunting to do. If not then you have some testing to do.Next what type of alarm is it? Try to google it. You may be able to find a trouble shooting guide to assist you. I know that you said you just replaced the battery, but the alarm very well may not be the culprit. It could be many other things as a loose fanbelt, bad diodes in your alternator, or some other componet draining your battery.
Posted on May 10, 2009
1996 Volkswagen Jetta 2.0L SFI 4cyl
On a Digifant fuel system, the fuel pump is mounted in a reservoir under the rear of the vehicle. The fuel filter is also in this area. The reservoir holds one liter of fuel and is supplied by a small transfer pump in the tank. The transfer pump can be replaced separately even though they are installed and removed as a unit.
The Motronic system uses two fuel pumps. The first is a small transfer pump to get the fuel out of the tank and the second boosts the fuel pressure to the necessary amount. The transfer pump is located inside the tank and the main pressure pump can be found under the vehicle. This transfer pump is located under the rear seat and is part of the fuel gauge sending unit. The main fuel pump can be found in the reservoir in front of the rear axle beam. There is a check valve inside this pump to maintain pressure in the lines, especially on hot days, to avoid vapor lock. The fuel filter is mounted to the side of the reservoir. This filter has no specified replacement interval and should be good for the entire service life of the vehicle. Whenever the ignition key is in the on position, the pump should run for at least two (2) seconds to pressurize the fuel lines. If the Engine Control Unit (ECM) does not see a signal from the Hall Effect sensor in the distributor it will shut the pump off. If a Hall Effect signal is present, the pump will continue to run as long as a signal is detected. It is this Hall Effect signal that signals the ECM that the engine is rotating therefore indicating that fuel is needed. The pump is operated via a relay that is controlled by the ECM. This relay is located in the vehicles fuse panel. The main contacts of the relay can be jumped to run the pump during testing.
More details in Autozone.com (free register).
Good luck (rated this help).
Posted on Sep 21, 2009
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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