Question about 1987 Ford F 350

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1987 ford f350 a/c problems

Heater fan doesnt work a/c doesnt work

Posted by Anonymous on

4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

mick-40
  • 94 Answers

SOURCE: Oil for Ford 350 engine

Hi flacurias, the 351W typically holds 5 to 6 litres including the filter based on stock sump depth, add 5l and start your engine,run for 1/2 minute or so and check the oil if any oil is still needed it will be a small amount,hope this helps good luck to you

Posted on Nov 11, 2008

  • 22 Answers

SOURCE: 1989 ford f350 a/c heater fan only runs on high

When your heater only works on high it is usually
the resistor unit in the heater passage housing. Look for wires ( about 4or 5 wires ) attached to the
plastic heater housing under the dash. It should
have a screw or two holding it to the housing. Pull
it out and you will see several wire coils. If they are melted or broken then thats the problem. On any switch position except high the power goes through these resistors to slow the fan down. Good luck. Neil W.

Posted on Dec 08, 2008

raineman_15
  • 273 Answers

SOURCE: 2006 ford f350 heater fan only works on high or

your blower motor resistor is gone if it only works on hi and low. You'll find it on the blowermotor itself there will be wires going into it and 2 screws holding it in place. when you pull it out it will be a ling square looking flat card

Posted on Nov 30, 2010

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1989 ford f350 a/c heater fan only runs on high, replaced switch ,didn,t help. thanks geo


When your heater only works on high it is usually
the resistor unit in the heater passage housing. Look for wires ( about 4or 5 wires ) attached to the
plastic heater housing under the dash. It should
have a screw or two holding it to the housing. Pull
it out and you will see several wire coils. If they are melted or broken then thats the problem. On any switch position except high the power goes through these resistors to slow the fan down. Good luck. Neil W.

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