2001S-Type power drain & hesitation

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Jun 10, 2008 | 11:50 AM

julio1

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Posts: n/a

2001S-Type power drain & hesitation

Subj car's battery goes dead every few weeks; I've cut and taped loose wires that lead nowhere that were in the trunk (I found this instruction on this site, thanks. Also, thought it may be alarm-related, or ignition key related. So I started using new (unused) key for igition, and a tiny fuse thing fell out of it. Didn't know there was a fuse in the key, guess that's why the key has that fat black plastic thingy. Have also tried removing inconsequential fuses one by one, but hasn't helped so far. Any ideas??

Separate issue, my engine's hestitating and seems to be getting worse, what do I need to do to fix that?

Jun 10, 2008 | 08:48 PM

jag_genius

Joined: Jun 2007

Posts: 2,076

Likes: 40

From: Pompino Beach , FL

RE: 2001S-Type power drain & hesitation

s type 's are fun to diag.. last 2 common ones ive had.. is check all the powers..for the front control module under dead pedal..(FEM) if one is missing or low due to power wire from right interior fuse box going thru the front harness.. and can get corroded.. one of the powers.. i think there are 3.. is a keep alive power.. 2nd.. Ignition barrel/switch.. worn out.. if he doesnt shut off the car all the way to left hardbefore taking the key out.. the accesorys can stay on.. ie radio.. .. if you need anymore ideas.. give me a PM

Jun 10, 2008 | 08:56 PM

ibjags

Joined: Jan 2008

Posts: 303

Likes: 2

From: Georgia

RE: 2001S-Type power drain & hesitation

definent ignition swith as a possiblity
the piece in the key is the key transponder
without it the key wont start the car
and the engine hesitation could be dead coil packs
need misfires read with genrad handheld scanner to verify