Question about Jaguar S-Type
We had a similar situation and we found out that the battery was the cause , even though it was new.
Try with another battery that you know is good from another car, if still having a problem , check the starter for drainage
Posted on Aug 16, 2017
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Posted on Jan 02, 2017
SOURCE: Car Battery draining over night
Something is shorted and it could be very difficult to find sometimes. It could be something as simple as a button being pressed when it shouldn't turning on a light or feature that runs all the time, but in a 2001 that is unlikely as it should turn off all lights after a certain period of time. It could be something in the radio. What I suggest is to pull one fuse at a time for accessories, check your manual for what each fuse powers. If the battery still drains with that fuse out then put it back in a pull another. When you find the fuse that allows your battery to keep it's charge then you will have a much smaller field of offending components.
For example, if you pull the fuse that powers the radio and heater, and the battery keeps it's charge then you know it is either the heater or radio causing your problem.
This can take a few weeks to do completly but won't cost you a penny to do.
Posted on Jun 09, 2008
The regulator could be sticking in the alternator. Unplug the alternator and see if the battery goes dead. I replaced an alternator once and the new regulator was bad.
Posted on Feb 15, 2009
No, corrosion will not cause a battery to drain, even if the corrosion is on the terminals. Several factors can cause battery drain, I would first have the battery tested to see if the battery it self is not bad. If the battery is good, then the most common is a short. All most all new cars have a certain amount of drain,(measured in milivolts) this drain is for clocks and computer memory's, and it would take several days of a vehicle sitting for the battery to be drained. Don't immediately assume you have a problem if you see 2-6 milivolts of drain on a battery with the key out, now if your battery is being drained after being parked over night, you have a problem. The easiest way to pin down the problem short is to disconnect your positive battery cable from the battery, take a 12 volt test light and clamp one end to the positive cable, and hold the probe to the positive post. Now if you have a short the light will come on. Have someone help you by pulling the fuses one at a time. If when a fuse is pulled the light goes out you have isolated the short to that system. If you pulled all the fuses and the light never went out try disconnecting all the wires from the alternator, 9 times outta 10 do this will let you know where your short is. If the system is not critical like power locks some people just leave the fuse out.
Posted on Mar 05, 2009
Hellokrissypoo4...Your navigator has what is known as a parasitic battery drain...meaning, something in the vehicles system is not turning off...here is the way i test for this, you will need a digitial multimeter to perform this test...when doing this test make sure that the dome light, under hood light, trunk light, etc. are OFF.
Posted on Jul 22, 2009
the radio is pulling down the battery, check to make sure it is install properlt, also make sure your battery is not weak, because remember the radio draws power at all time, to keep the time and your preset radio station. so check the battery for proper strenght first please.
Posted on Jul 31, 2009
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