Slave cylinder maybe? - Ford Powerstroke Diesel Forum
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post #1 of 16 Old 11-12-2009, 09:46 PM Thread Starter
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Question Slave cylinder maybe?

would a bad slave cylinder keep my truck from starting? I'm thinking that if the clutch isn't fully engaged because of a bad slave cylinder then that may be keeping my truck from starting occasionally. The wait to start light works like normal but when i turn the key, i get nothing. Just like when the clutch petal isn't applied. I am also having problems getting into gear without some frustration. Reverse grinds the odd time and i have to match revs to get it into 1st and 2nd. Almost like the clutch isn't there at all. yet other times, it starts fine and shifts fine.
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post #2 of 16 Old 11-12-2009, 09:58 PM
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does your clutch pedal squeek when you push it in?

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post #3 of 16 Old 11-13-2009, 06:06 AM Thread Starter
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no squeek

no it doesn't make any noise. someone told me there is a botton near the clutch petal that allows the engine to start but i think its a sensor on the clutch or tranny itself.
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post #4 of 16 Old 11-14-2009, 01:31 AM
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The switch is on the peddle way up high with 2 wires going to it. I bypass them by tying the 2 wires together with a jumper. The slave is less likely to go bad than the master is but it could be either. Check the firewall for cracks around the master cylinder mount, they can break out and not allow the peddle to fully depress the master cylinder piston.

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1977 I bought a new 76 F150 club cab.
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With all the drive train and goodies from a 95 4X4 4door PSD.
Nothing stock left on her and not a nut, bolt, hose, or wire on there that I didn't put where it is.
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post #5 of 16 Old 12-16-2009, 04:34 AM Thread Starter
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clutch

well, it turned out to be a bad clutch and flywheel. $1800 later and i still have the starting issue but now i know it's all in the pedal and that stupid switch. i may just use a jumper and eliminate the switch all together.
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post #6 of 16 Old 12-17-2009, 02:33 PM
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""i may just use a jumper and eliminate the switch all together. ""
And how much do think it 's going to cost you for that wall the truck runs thru when someone (maybe a kid) turns the key on with the truck in gear????
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post #7 of 16 Old 12-17-2009, 03:28 PM Thread Starter
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This truck is strictly a work vehicle. Little children don't tend to find their way into the truck. If they did it would not have the keys in it. If all of the stars align and an unfortunate child does find the keys, put them in the ignition, turn the key, and start the vehicle it would instantly stall from not having the pedal down. The parking break would also have to be released. So I think i can go ahead and safely eliminate the switch and know that all are safe and my truck will not become a piece of furniture sticking through my wall.

Just poking fun.
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post #8 of 16 Old 12-17-2009, 07:02 PM
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Quote:
Originally Posted by ipz2222 View Post
""i may just use a jumper and eliminate the switch all together. ""
And how much do think it 's going to cost you for that wall the truck runs thru when someone (maybe a kid) turns the key on with the truck in gear????
You know I been driveling trucks of every size and shape since way before anyone dreamed of a switch on the clutch (over 20 years in wreckers alone) and have never seen one started in gear on accident. I have done it on purpose many times and it isnít at all easy to do even when you want to, it's not like an automatic that will start in gear just like it will in park. I call it an idiot switch and since no idiots are allowed to have my keys I take them out so if I ever do need to start it in gear to get home I can. All my walls been doing just fine all these years without idiot switches.

ANDY

My baby is a one of a kind.
1977 I bought a new 76 F150 club cab.
Sitting on a 84 F350 6.9 4X4 chassis
With all the drive train and goodies from a 95 4X4 4door PSD.
Nothing stock left on her and not a nut, bolt, hose, or wire on there that I didn't put where it is.
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post #9 of 16 Old 12-21-2009, 09:51 AM
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I was stupid once, started my Jeep while standing next to it... it happened to be in granny gear and started up and started accross the parking lot. scared the hell out of me, won't do that again.

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See a pattern? next I will have to find one of those 6 door jobbers...
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post #10 of 16 Old 01-24-2010, 01:20 AM Thread Starter
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it turns out the bushing in the hydraulic cylinder is shot. the post on the pedal pivot has been worn halfway through resulting in the neutral safety switch not being triggered because the pushrod doesn't fully engage.
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