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10-02-2019, 02:00 PM
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#1
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Junior Member
Join Date: Oct 2019
Posts: 9
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E-350 Cruise Control
my cruise control stopped working on my 1998 E-350 7.3 Diesel. I saw a few videos that it could be the Cruise control sensor activator pressure switch.
part they are suggesting is Motorcraft SW6350 Brake Repair Kit
https://www.amazon.com/gp/product/B0...VVVDFWRF4NVH2L
Any one have any other suggestions?
Thanks,
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10-02-2019, 02:40 PM
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#2
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Senior Member
Join Date: Oct 2007
Location: Indy
Posts: 566
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__________________
2008 Ford E-350 Quigley 4x4 V10 - 164,000 miles
RB50, PH Top, Dual AGM Group 27 Deka, 2000 Tripplite Inv., No Propane or Water Systems
Van Weight 8,100 pounds, added one rear leaf spring, BFG AT KO LT265/70R17 E Tire press 50psi.
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10-02-2019, 03:23 PM
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#3
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Senior Member
Join Date: Sep 2013
Location: San Luis Obispo, CA
Posts: 2,553
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Quick way to check if it is the switch on the master cylinder is to take the wiring harness off and use a paper clip or something to jump the two sides together on the harness. Take it for a spin and see if your CC works. If it does, then the switch on the master cylinder is bad. If it still doesn't work, then there is something else to look into.
__________________
2005 E350 Chateau - V10 - Agile Offroad 4x4
2012 CTS-V Wagon - For the baby...
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10-02-2019, 07:53 PM
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#4
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Senior Member
Join Date: Oct 2009
Location: Portland, OR
Posts: 1,257
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Switched mine out today. Still no cruise. Ordered new steering wheel buttons off eBay after that. Then brake switch or click spring. What’s after that?
__________________
2001 Ford RB 7.3 Quadvan (sold)
2006 Sportsmobile EB Transformer 6.0
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10-03-2019, 09:40 AM
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#5
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Senior Member
Join Date: Jan 2011
Location: Reynoldsburg, Ohio
Posts: 3,774
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Quote:
Originally Posted by vandiesel
Switched mine out today. Still no cruise. Ordered new steering wheel buttons off eBay after that. Then brake switch or click spring. What’s after that?
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The actual VSC servo (underhood) would be the only remaining thing to check.
BTW there is an entire diagnostic check procedure for the VSC---should be in the appropriate year's EVTM under Pin Point Tests. Following that eliminates firing the parts cannon at a problem, helps you zero in on the actual problem.
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10-03-2019, 09:57 AM
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#6
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Senior Member
Join Date: Mar 2019
Location: Croydon, PA
Posts: 307
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It may vary depending on the year, but many of the cruise control systems in the E-series were vacuum operated. The first thing to check would be if the system can old a vacuum. If not, start going through the various components until you find the leak. After 20+ years in a hot environment, all of the various hoses can get brittle.
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10-03-2019, 06:22 PM
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#7
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Senior Member
Join Date: Oct 2009
Location: Portland, OR
Posts: 1,257
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Quote:
Originally Posted by JWA
The actual VSC servo (underhood) would be the only remaining thing to check.
BTW there is an entire diagnostic check procedure for the VSC---should be in the appropriate year's EVTM under Pin Point Tests. Following that eliminates firing the parts cannon at a problem, helps you zero in on the actual problem.
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But life is so boring without firing a parts cannon :-). Mine won’t turn on yet so I think I have an electrical problem first. I will go through that diagnostics next but I also changed out the steering wheel so I figured that is probably where my problem lies.
__________________
2001 Ford RB 7.3 Quadvan (sold)
2006 Sportsmobile EB Transformer 6.0
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10-12-2019, 09:38 AM
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#9
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Senior Member
Join Date: Oct 2009
Location: Portland, OR
Posts: 1,257
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My horn works fine.
__________________
2001 Ford RB 7.3 Quadvan (sold)
2006 Sportsmobile EB Transformer 6.0
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10-13-2019, 04:54 AM
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#10
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Senior Member
Join Date: Jan 2011
Location: Reynoldsburg, Ohio
Posts: 3,774
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Quote:
Originally Posted by vandiesel
But life is so boring without firing a parts cannon :-). Mine won’t turn on yet so I think I have an electrical problem first. I will go through that diagnostics next but I also changed out the steering wheel so I figured that is probably where my problem lies.
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True enough on the parts cannon---in an odd way going that route gives us the illusion we're at least doing something (accomplishments notwithstanding)
The diagnostic procedure essentially trouble shoots the entire electrical circuit for the VSC. For the most part following the EVTM's resistance values for the steering wheel switches will tell you if the servo is bad or another part of that circuit has failed.
And yes if you've changed the steering wheel and not used the original switches and connectors that could very well be the issue.
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