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Old 05-23-2019, 09:56 AM
StephenVA StephenVA is offline
Join Date: Jun 2013
Location: Virigina, USA
Posts: 2,275
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Multiple posters have discovered that the POSITIVE jump point is loose causing all types of issues. I would recommend, as everyone else has, remove the positive nut, cleaning all contact surfaces and reinstalling. I would also recommend removing the battery, cleaning all terminal ends and ground contacts in the trunk as any POOR negative grounds will create all kinds of electrical hell within the vehicle up to and including part failures and low voltage relays, and modules failures.

The parts under the hood have been exposed to high heat soaks, water spray, and general corrosion for the past 15 years. Give everything a wrench turn after cleaning.

Voltage drop Test listed below
Attached Images

2005 X5 4.8IS
The Blue ones are always FASTER....

Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green
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