heating problem

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Heater core is fine; blower motor works; no heat - how does one access the switch?

Nov 14, 2009

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What are the best Ford repair shops?

RepairPal Certified shops can diagnose and repair your 1991 Ford Taurus. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

Popular Answer

heating problem

What is your question?

Heater core is fine; blower motor works; no heat - how does one access the switch?

prh in Oklahoma City OK

Nov 14, 2009

2 Replies

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backyard techon Nov 14, 2009

Customer Concern: HVAC. No hot air from the heating system. Has good temperature at the heater core. Tests/Procedures: Remove the temperature control, check the RD/WH wire for a 5V reference and the RD/LG for under 0.05V. If not OK, check the power at the blend door actuator on LB/BK and ground on BK. If OK, check again at the temperature control. Check the YW/LG for voltage to vary from 0.5V cold. to over 4.2V hot. If not, it has a bad temperature control. If it is OK, it has a bad blend door actuator or broken temperature door. Potential Causes: Broken Blend Door Defective Blend Door Actuator

sinautoscan.comon Nov 14, 2009

check the Heating controls sometimes this unit goes bad once this happens no control over blower

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Popular Answer

What are the best Ford repair shops?

RepairPal Certified shops can diagnose and repair your 1991 Ford Taurus. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.