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jwmarc jwmarc is offline
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Join Date: Nov 2005
Location: columbia md
Posts: 211
tach stops at 4500-5000 RPM when air temp is hot

Tach is operational through the entire range when the air temp is cool... when it is hot out ( 85-95 degrees) the tach will operate up to 4500-5000 rpm and then stops.. doesnt fall back just stays at the 4500 rpm level and when the engine falls back below that RPM it starts registering again.. Anyone experience this problem or know what the repair might be...other than sending it out for rebuild....Thanks
1987 930 -Guards Red
2001 740I sport Blk
2011 F-150 supercrew Blk
2014 X3 2.8 white
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Old 06-21-2008, 01:21 PM
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