Its al davison again quick question my friends.

Tiny
AL DAVISON
  • MEMBER
  • 1998 BMW 740
  • 140,000 MILES
Its al davison again quick question my friends 740 we replaced the thermostat the water pump and the four post sending unit on the pump every thing is fine no problems no cel but when you check for fault codes 8b comes up on the peake tool electric thermostat control final stage what does that mean how to fix thank you
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Wednesday, November 7th, 2012 AT 4:38 PM

5 Replies

Tiny
DR. HAGERTY
  • MEMBER
Use a real OEM thermostat or recheck the wiring from the temp sender all the way back to the E-box, it may be fried.
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Wednesday, November 7th, 2012 AT 5:25 PM
Tiny
AL DAVISON
  • MEMBER
Hi dr. It is a oem thermo ill check the wires and let you know thanks al
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Wednesday, November 7th, 2012 AT 6:13 PM
Tiny
DR. HAGERTY
  • MEMBER
11.8 ohms of resistance at the connector of the Tstat
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Thursday, November 8th, 2012 AT 8:28 AM
Tiny
AL DAVISON
  • MEMBER
Thank you dr. I will ceck that out and I will let you know what I find thank you for your time and trouble al
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Thursday, November 8th, 2012 AT 9:32 AM
Tiny
DR. HAGERTY
  • MEMBER
:-)
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Friday, December 7th, 2012 AT 5:19 AM

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