So my car started freaking out yesterday and I figured it had something to do w/ voltage.. Anyway I took it to the Stealership and they claimed that my underdrive pullies were the demise of my alternator.. Has anyone else had this problem?
Do you do a lot of idling in traffic in your car? If so, that can be hard on your alternator. As long as you are around 1K-2K rpms (normal driving rpm range), the alternator should be fine.
^^^
IN OTHER WORDS
for warrenty purposes. YES.
you can't take a modded car to a dealer, and expect them to fix a problem clearly linked to the mod... /shrug.
"Now you Know"
So my car started freaking out yesterday and I figured it had something to do w/ voltage.. Anyway I took it to the Stealership and they claimed that my underdrive pullies were the demise of my alternator.. Has anyone else had this problem?
I had the same thing happen to me... No the UDP did not cause the issue, the Voltage Regulator is designed to regulate the voltage from Idle (500-900 RPM) at 11.5 - 12.1 volts at full RPM 6250 the VR regulates 12.9 - 14.0 the range with a 25% reduction in rotation in minimal to the VR. the actual Generator can generate between 12VAC at 500RPM to 52VAC 6250 RPM so no matter what the Generator is spinning at, the VR tries to maintain the charging voltage at 11.5 to 14.0 VDC
I talked to the service manager and provided him with the TSB Stating the Bad Alternator issue on the Mustangs and a paper on how the Alternator works and a quick mention of the Magnuson Moss Act stating his duties in this dispute.
Key is DO NOT GET ANGRY or MENTION LAWYERS this usually pisses them off.
be calm and try to prove your case with facts.
There is a TSB out stating the Exact to the "T" issue I was having (which was not related to the alternator) "Cam position sensor failure " CEL DTC P0340.
This article supersedes TSB 05-23-17 to update the vehicle line coverage. ISSUE:
Some 2005-2006 F-Super Duty and Expedition/Navigator and 2004-2005 F-150 vehicles, equipped with 5.4L 3V engine, and 2005-2006 Mustang GT vehicles, equipped with 4.6L 3V engine, may exhibit a diagnostic trouble code (DTC) P0340 and/or P0344; or 2006 Explorer 4dr/Mountaineer equipped with a 4.6L 3V engine may exhibit a (DTC) P0345 and/or P0349. This may be due to a malfunctioning diode or open phase connection in the generator.