Home » Public Forums » GMCnet » Boost Solenoid Replacement
| Boost Solenoid Replacement [message #234572] |
Tue, 31 December 2013 11:05  |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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I have never really had any starting issues with our coach over the five and a half years we have owned it, but I did suspect the boost system was not in working order. I replaced the chassis battery a year or so ago after finding it to be a little weak, at six years of age, but before replacing it, I tried the boost switch to get a little more power to the starter. It didn't seem to do anything.
A couple weeks ago, I had Kathy come out to the driveway and hit the switch a few times, while I checked the voltage at the solenoids. There was power across the two small terminals when she turned on the switch, but no noise or any sign of solenoid operation at either solenoid. At least I knew the wiring to both was still good and operational.
I ordered a pair of new solenoids from Jim B, along with some new stereo speakers for the new system SHE wanted for Christmas. Along with some very good advice on installation and wiring of the speakers, Jim made sure I actually needed two solenoids for my '75 coach. After reassuring himself that he wasn't selling me stuff that I don't need, he shipped them to me and I received them the following week.
It took less than two hours to install the new solenoids, and only took that long because I took the extra time to thoroughly clean all the hardware and connections as I went along. I took the loose pieces (screws, washers, ground wires) to the wire wheel and made them all shiny, and wire brushed all the rest of the terminals in place.
After completing the job, I had Kathy come back out and activate the boost switch again. This time, there was a satisfying click coming from each of them. It is a good feeling to have this system working at 100% once again. It is a simple job and I highly recommend doing it if your boost system is not operating correctly.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: Boost Solenoid Replacement [message #234574 is a reply to message #234572] |
Tue, 31 December 2013 11:13  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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| Carl S. wrote on Tue, 31 December 2013 12:05 |
I have never really had any starting issues with our coach over the five and a half years we have owned it, but I did suspect the boost system was not in working order. I replaced the chassis battery a year or so ago after finding it to be a little weak, at six years of age, but before replacing it, I tried the boost switch to get a little more power to the starter. It didn't seem to do anything.
A couple weeks ago, I had Kathy come out to the driveway and hit the switch a few times, while I checked the voltage at the solenoids. There was power across the two small terminals when she turned on the switch, but no noise or any sign of solenoid operation at either solenoid. At least I knew the wiring to both was still good and operational.
I ordered a pair of new solenoids from Jim B, along with some new stereo speakers for the new system SHE wanted for Christmas. Along with some very good advice on installation and wiring of the speakers, Jim made sure I actually needed two solenoids for my '75 coach. After reassuring himself that he wasn't selling me stuff that I don't need, he shipped them to me and I received them the following week.
It took less than two hours to install the new solenoids, and only took that long because I took the extra time to thoroughly clean all the hardware and connections as I went along. I took the loose pieces (screws, washers, ground wires) to the wire wheel and made them all shiny, and wire brushed all the rest of the terminals in place.
After completing the job, I had Kathy come back out and activate the boost switch again. This time, there was a satisfying click coming from each of them. It is a good feeling to have this system working at 100% once again. It is a simple job and I highly recommend doing it if your boost system is not operating correctly.
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Carl,
It must be the age. My boost solenoid just failed the other day. I haven't replaced it yet, but that and some other DC work on the Winter Work list.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: Boost Solenoid Replacement [message #234576 is a reply to message #234572] |
Tue, 31 December 2013 11:31 |
Otterwan
Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...
Karma: 0
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Senior Member |
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| Carl S. wrote on Tue, 31 December 2013 09:05 |
I have never really had any starting issues with our coach over the five and a half years we have owned it, but I did suspect the boost system was not in working order. I replaced the chassis battery a year or so ago after finding it to be a little weak, at six years of age, but before replacing it, I tried the boost switch to get a little more power to the starter. It didn't seem to do anything.
A couple weeks ago, I had Kathy come out to the driveway and hit the switch a few times, while I checked the voltage at the solenoids. There was power across the two small terminals when she turned on the switch, but no noise or any sign of solenoid operation at either solenoid. At least I knew the wiring to both was still good and operational.
I ordered a pair of new solenoids from Jim B, along with some new stereo speakers for the new system SHE wanted for Christmas. Along with some very good advice on installation and wiring of the speakers, Jim made sure I actually needed two solenoids for my '75 coach. After reassuring himself that he wasn't selling me stuff that I don't need, he shipped them to me and I received them the following week.
It took less than two hours to install the new solenoids, and only took that long because I took the extra time to thoroughly clean all the hardware and connections as I went along. I took the loose pieces (screws, washers, ground wires) to the wire wheel and made them all shiny, and wire brushed all the rest of the terminals in place.
After completing the job, I had Kathy come back out and activate the boost switch again. This time, there was a satisfying click coming from each of them. It is a good feeling to have this system working at 100% once again. It is a simple job and I highly recommend doing it if your boost system is not operating correctly.
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Let me make sure I understand this. A GMC story where a problem was discovered, the replacement parts obtained and installed, and the problem was fixed? No blood, no broken bones, no sitting on the roadside for hours?
Wow. It's enough to make you believe in miracles ;o)
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
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| Re: Boost Solenoid Replacement [message #234584 is a reply to message #234576] |
Tue, 31 December 2013 12:32 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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| Otterwan wrote on Tue, 31 December 2013 12:31 |
Let me make sure I understand this. A GMC story where a problem was discovered, the replacement parts obtained and installed, and the problem was fixed? No blood, no broken bones, no sitting on the roadside for hours?
Wow. It's enough to make you believe in miracles ;o)
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David,
How about you have trouble on the way to a rally, but you get there (in some cases, get towed there) because you know that the parts and any required expertise will be waiting at the rally.
Or you find you need a "GMC only" part, so you have JimK bring it in with a subsequent shipment of his wares. That is service....
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: Boost Solenoid Replacement [message #234585 is a reply to message #234584] |
Tue, 31 December 2013 12:37 |
Otterwan
Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...
Karma: 0
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Senior Member |
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| Matt Colie wrote on Tue, 31 December 2013 10:32 |
| Otterwan wrote on Tue, 31 December 2013 12:31 |
Let me make sure I understand this. A GMC story where a problem was discovered, the replacement parts obtained and installed, and the problem was fixed? No blood, no broken bones, no sitting on the roadside for hours?
Wow. It's enough to make you believe in miracles ;o)
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David,
How about you have trouble on the way to a rally, but you get there (in some cases, get towed there) because you know that the parts and any required expertise will be waiting at the rally.
Or you find you need a "GMC only" part, so you have JimK bring it in with a subsequent shipment of his wares. That is service....
Matt
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Matt, you do know I was joking, right? So many stories start out with "When smoke started pouring out of the" that this one was quite refreshing! - Dave
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
[Updated on: Tue, 31 December 2013 12:38] Report message to a moderator |
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| Re: Boost Solenoid Replacement [message #234588 is a reply to message #234585] |
Tue, 31 December 2013 13:08 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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| Otterwan wrote on Tue, 31 December 2013 13:37 |
How about you have trouble on the way to a rally, but you get there (in some cases, get towed there) because you know that the parts and any required expertise will be waiting at the rally.
Or you find you need a "GMC only" part, so you have JimK bring it in with a subsequent shipment of his wares. That is service....
Matt
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Matt, you do know I was joking, right? So many stories start out with "When smoke started pouring out of the" that this one was quite refreshing! - Dave[/quote]
I did guess - actually. But, this community does continue to amaze me.
Happy New Year - - - we some grans here to help celebrate
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: Boost Solenoid Replacement [message #234605 is a reply to message #234572] |
Tue, 31 December 2013 16:09 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Senior Member |
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when I first got my coach, I got the solenoid from Jim B as well. replaced my isolator, and renewed my battery system.
ever since, I do a couple things when I start my coach. I hit the boost switch almost every time, especially when it has been sitting, and I also turn on my aux, fuel pump.
I can always hear the solid click of the boost solenoid, so I know it is still working. and I can hear the aux pump, so I know that is still working.
I think it helps keep contacts working on both the pump, and switch as well.
I think not using them once in a while causes issues. I do that with most things... run the furnace when i can, fire up the onan and run the A/C's off the onan for bit once in a while, ect..
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: [GMCnet] Boost Solenoid Replacement [message #234615 is a reply to message #234605] |
Tue, 31 December 2013 17:55 |
Michael Johnson
Messages: 62
Registered: January 2013
Karma: 0
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Member |
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I've got a burned out isolator, a forty year old boost solenoid, and a
brand new 1315a surepower bi directional combiner. Can I use the 1315a for
all functions?...boost, joined when charging (either alternator or shore
power), isolated when discharging? I'm thinking to locate the 1315a where
the boost solenoid is, sleeving the positive cable from the house battery
in flexible non metallic conduit across the front frame member.
Michael Johnson, Boulder, Colorado
1976 Edgemont, totally stock and running just fine. In our family for 25
years!
Thanks, Dad (Don)
On Dec 31, 2013 3:09 PM, "Jon Roche" <lqqkatjon@gmail.com> wrote:
>
>
>
> when I first got my coach, I got the solenoid from Jim B as well.
replaced my isolator, and renewed my battery system.
>
> ever since, I do a couple things when I start my coach. I hit the boost
switch almost every time, especially when it has been sitting, and I also
turn on my aux, fuel pump.
>
> I can always hear the solid click of the boost solenoid, so I know it is
still working. and I can hear the aux pump, so I know that is still
working.
>
> I think it helps keep contacts working on both the pump, and switch as
well.
>
> I think not using them once in a while causes issues. I do that with most
things... run the furnace when i can, fire up the onan and run the A/C's
off the onan for bit once in a while, ect..
>
>
>
>
> --
> 75 palm beach
> St. Cloud, MN
> http://lqqkatjon.blogspot.com/
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: Boost Solenoid Replacement [message #234673 is a reply to message #234572] |
Wed, 01 January 2014 02:37 |
appie
Messages: 902
Registered: April 2013
Location: denmark
Karma: 2
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Senior Member |
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Rob
these combiner have a seperate lead to connect to a boost switch on your dash that combines both batteries on your command
Just like the OEM setup
Appie
eleganza 76 "Olga" now sadly sold
6 wheel discbrake
Quadrabags
Springfield stage 2 462 olds
Manny tranny
( pictures at http://www.gmcmhphotos.com/photos/g6489-olga.html
Fulltiming in Europe july 2014 til july 2016
Denmark
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| Re: Boost Solenoid Replacement [message #234695 is a reply to message #234574] |
Wed, 01 January 2014 09:46 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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| Matt Colie wrote on Tue, 31 December 2013 10:13 |
Carl,
It must be the age. My boost solenoid just failed the other day. I haven't replaced it yet, but that and some other DC work on the Winter Work list.
Matt
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Matt,
When I called Bounds, he used one of his favorite phrases about "the half life" of that part being "right about now". I guess he was right. The funny thing is that, this being a Southwestern coach, they didn't physically look bad. They were not nice and shiny like the new ones, but not nasty and rusty like some I have seen in photos. They just didn't work.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
[Updated on: Wed, 01 January 2014 21:04] Report message to a moderator |
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| Re: [GMCnet] Boost Solenoid Replacement [message #234698 is a reply to message #234695] |
Wed, 01 January 2014 10:08 |
Michael Johnson
Messages: 62
Registered: January 2013
Karma: 0
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Member |
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I'm going to put in a new solenoid, polish up the connections, it's there a
generic part number, and should I put anything on the connections to aid
conductivity. I'll use the 1315 as a no loss isolator. Good info here,
thanks all
On Jan 1, 2014 8:47 AM, "Carl Stouffer" <carljr3b@yahoo.com> wrote:
>
>
> Matt Colie wrote on Tue, 31 December 2013 10:13
> > Carl,
> >
> > It must be the age. My boost solenoid just failed the other day. I
> haven't replaced it yet, but that and some other DC work on the Winter Work
> list.
> >
> > Matt
>
>
>
> Matt,
>
> When I called Bounds, he used one of his favorite phrases about "the half
> life" of that part being "right about now". I guess he was right. The
> funny thing is that, this being a Southwestern coach, they didn't
> physically look bad. They were nor nice and shiny like the new ones, but
> not nasty and rusty like some I have seen in photos. They just didn't work.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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