Question about 1985 Ford F350

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I just bought a 1985 F350 1 ton truck, it has a hydraulic clutch. The clutch disenguages fine when the truck is warm, but when I drive it 30 miles and every thing heats up the clutch does not disenguage

Posted by Scott Carrigan on

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MasterTech78

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I'm sure you've checked the fluid level, I would first try bleeding the system to rule out any air pockets. It also could be a fluid bypass situation, especially if the master/slave are old or the cup seals have been exposed to contaminated fluid. The seals can become hardened over time and will not expand along with their respective bore when hot. The cure for that is replacement of the clutch master cylinder and/or slave. The master cylinder is a fairly easy task, but the slave cylinder requires removal of the transmission. Bleeding this system can be frustrating, but you should be able to find plenty of information about the process around the web. Good luck.

Posted on Oct 30, 2014

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5 Related Answers

louisfowler_

  • 1244 Answers

SOURCE: 1994 expo transmission disenguages when overdrive

the torque convertor clutch solenoid in the tranny is full of junk! / metal shavings starving the tranny from the front pump while in O/D

Posted on Jan 21, 2010

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Shdak

Mike Abrams

  • 23 Answers

SOURCE: 1999 Chevy 4wd silverado 5.3l

I had the same issue with my truck, the switch was the problem.

I solved my issue by process of elimination which started with the switch,,, easiest thing to replace first.

Posted on Apr 05, 2009

Richie_asg1

Richard Perkins

  • 1036 Answers

SOURCE: While under the car checking

I suggest that the self adjusting clutch cable / mechanism has locked - taking up all the "slack" you gave it.

Check for a ratchet arrangement behind the clutch pedal - or maybe in the cable itself. You may need a new clutch cable fitting.

Posted on Aug 04, 2009

Anonymous

  • 11 Answers

SOURCE: After bleeding my hydraulic clutch I still don't

Did you replace the slave or master cylinder or both? WHats the reason for needing to bleed it? If it seemed like it was out of adjustment and you bled it, it may indicate that either of these parts are allowing fluid past when under pressure. If you replaced one and not the other, that could be where your problem lies. If you replaced both, then try loosening the bleeder and leave it undone overnight. This should allow the air out.

Posted on Dec 13, 2009

ramp84

ryan echavez

  • 57 Answers

SOURCE: i changed the solenoid in my 97 ford explorer and

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this is the wiring of the basic starter motor , it may have small diffences but the logic is there...

hope this one helps.... :)

Posted on Mar 26, 2010

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