Question about GMC R3500

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I have a GMC Topkick with a Cat engine. 7 speed manual transmission. Yesterday it seems as if the clutch cable came loose from the transmission. I cannot shift the transmission as the clutch does not disengage. Is it possible that the cable broke, or does this transmission have a slave cylinder? Ok, you are the expert.... What is the answer. The model I chose below is not correct as they didnt have the C6500 as a choice

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It is very possible that the operation for the clutch has failed
as to hydraulic or cable , all you have to do is look under the bonnet and see if there is a clutch master cylinder or a cable from the clutch pedal
if hydraulic replace the clutch master cylinder and slave cylinder and if cable replace the cable
better still take it to an accredited clutch and brake service center and have it properly diagnosed service

Posted on Jul 13, 2017

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6ya6ya
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Posted on Jan 02, 2017

pakis
  • 86 Answers

SOURCE: 1995 nissan truck 2wd, 4

Bleed the system

Posted on Dec 29, 2008

  • 126 Answers

SOURCE: 2002 Sunfire

check automatic adjuster on clutch pedal under dash .

Posted on May 08, 2009

  • 881 Answers

SOURCE: 1999 honda prelude manual transmission isn't

This depends as dose it do it when cold or hot.
2nd when you push in pedal and put in gear dose it go in clean or hard to select 3rd can you hear a grinding noise when pushing in pedal and noise goes
when you take you foot off the clutch pedal IF so then its the thrust bearing on clutch REPLACE ALL .4th if you push in clutch pedal and select a gear and let the clutch out if drive right out (replace)

Posted on Sep 27, 2009

  • 157 Answers

SOURCE: Clutch pedal does not disengage clutch

If the car hasn't been driven for a while it could be corrosion on the fork but I think that is unlikely. I think you are right about the release bearing being jammed in the spring. If the truck has quite high mileage, it probably means a clutch job.

Posted on Feb 27, 2010

Jta91
  • 99 Answers

SOURCE: Replacing the clutch on a 1998 Saturn SL1

It is very difficult for you to disengage the clutch by hand or with any leverage you can get outside the transmission. There is over 200 lbs of force clamping on the clutch disc.

If you replaced the clutch and took the slave cylinder out of the transmission without putting a brick under the clutch pedal or disconnecting the pivot arm from the pedal then you ruined the hydraulics. Buy a new PRE-BLED system from a local auto store. Generally this is the problem.

Either that or the clutch fork is bent or you installed the throwout bearing backwards (or simply fell off the fork which is not all that uncommon).

Posted on May 24, 2010

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