Solenoid back by the engine on 1997 monterey

[Rick Penick]

 I tested it had juice on one side not the other side . i jumped it and engine started. so i took it off need to get new one where would you recommend i get one?



Rick

[Fred Brooks]

   Rick,
It is the starter solenoid. It should be chassis battery "hot" on one side and when you turn the ignition key to the start position, the small post on the solenoid should become 12 volt hot momentarily and engage the solenoid so the other post becomes "hot" going to the started. I would replace it if defective with a Cole- Hersey continuous duty rating above 500 amps. Sorry I don't have a part number. Perhaps someone will chime in with a part number. Hope this helps, Fred

[Rick Penick]

Ok great! would be nice to have a part number..


Thank you
Rick

[Rick Penick]

I did a quick look i see nothing that is 500 amp . Found one looks just like what i have at oreilly 85 amps.



Rick

[Rick Penick]

Found this on amazon 200 amp highest i have seen. What is the reason for 500 amps?

Thx Rick


https://www.amazon.com/HERSEE-TERMINAL-CONTINUOUS-SOLENOID-24213BX/dp/B00FGJIJR6/ref=pd_day0_263_3/140-1369159-0851517?_encoding=UTF8&pd_rd_i=B00FGJIJR6&pd_rd_r=1fe5b073-49d6-447a-acce-e541d368fd04&pd_rd_w=sU5iy&pd_rd_wg=aQja2&pf_rd_p=a59dd86a-4de1-429e-a396-2293f5f62529&pf_rd_r=MZMR6EVM893NN5BQXTJE&psc=1&refRID=MZMR6EVM893NN5BQXTJE 

[David T. Richelderfer]

http://beaveramb.org/forum/index.php/topic,10072.msg68624.html#msg68624

http://beaveramb.org/forum/index.php/topic,4388.msg33179.html#msg33179

[Gerald Farris]

Rick,
The problem here is that Fred was talking about a starter solenoid like this; https://www.ebay.com/i/264148579459?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=264148579459&targetid=4580290572086399&device=c&mktype=&googleloc=&poi=&campaignid=403204655&mkgroupid=1227055191472610&rlsatarget=pla-4580290572086399&abcId=9300377&merchantid=51291&msclkid=ee79662022c71a525f9339417f577fbd
and you are talking about your boost solenoid or salesman switch solenoid. 

If it was the boost solenoid and there was 12v on only one side, you had a dead battery bank, and bypassing it tied your battery banks together to start the coach. If that is the case, there is probably nothing wrong with the solenoid because it should not be engaged unless you are holding down the boost switch.

You need to familiarize yourself with the coach and its systems before you seriously cause damage or injury. There are several club members in the Tucson or Phoenix area that would be willing to give you a walk through and answer your questions.

Gerald

[Fred Brooks]

    Rick, If you live in Tucson, I would give you a "show coach" for free. Fred

[Steve Huber Co-Admin]

Rick,
Before you spend$ consider that the boost solenoid will not have voltage on both sides until the Boost switch in the cockpit is pushed. Your jumpering of the solenoid effectively jumpered the  switch. If you haven't yet, try starting the engine with the boost switch pushed. If it starts, you most likely have discharged chassis batteries that are causing the no start problem.
Steve

[Rick Penick]

OK ,

So i replaced the batteries with new ones die hard commercial group  31 batteries . I took them out had them tested said they were bad. I bought this coach at rv park in showlow az. I been trying to get it to tucson since i bought it. So if solenoid is not bad than why would it start when i jumped it and show power on only one side with brand new batteries installed? I do appreciate the help here but i am in showlow not phx or tucson wish i was but not the case i want to get coach home so i can work on it etc. I am not interested in getting experimented  on by some one i dont know when this could be something simple.

Rick

[Mike Shumack]

I tested it had juice on one side not the other side . i jumped it and engine started. so i took it off need to get new one where would you recommend i get one?
Rick

What solenoid did you jump? Where is it located?

On my '05 Coach there is a "starter solenoid" located on the starter as you would expect, and a second solenoid mounted on the chassis above that (which takes the power from the ignition switch and applies that to the solenoid on the starter). I had to replace that chassis solenoid (which is a "momentary duty" solenoid) when my Coach would not start.

Then there is the 12V "continuous duty" solenoid in the front run bay which powers up half of the circuit breakers (some of which feed the engine and transmission ECMs).

And the 12V Coach power solenoid/relay (a.k.a. Salesmen's Switch) which is mostly for interior 12V lighting.

Then there is the BigBoy solenoid (which you probably don't have on a '97) that is used for battery charging, and to connect House and Chassis batteries together when you press the "Boost" button. However you probably have a boost solenoid used to connect the House and Chassis batteries together to assist starting (I assume you have the DUVAC charging system)

This diagram (frm the Coach Assist section) should be your setup (for a '97) or very close to it.

[Steve Huber Co-Admin]

Rick,
I'm assuming you jumped the start boost solenoid and that you jumpered the 2 large terminals on the top of it. One of those terminals should have house battery voltage and the other has chassis battery voltage. When the boost switch is pushed the solenoid closes and the ties the batteries together to provide max amperage to the starter. We don't have a 97 diagram but the 96 copy shows that both chassis and house battery connections come from from the battery isolator. The chassis battery is a direct connection to the chassis battery stud on the isolator. The house  battery connection comes from an aluminum terminal bar that is connected to the house battery stud on the isolator. Verify you have 12v on both chassis and house studs on the isolator. The 96 diagram shows the isolator, aluminum bar and boost solenoid all on the isolator board.
Steve

[Rick Penick]

update ...so the airbags are up and working. the compressor tank had a leak at the pressure relief valve seems ok now. as far as the coach goes two new 6 volt batteries installed and two new chassis group 31 die hard. so the problem is coach not starting turning the key. tried turning key and pushing boost switch nothing happens. also the dash will have hazard lights blinking etc. when you turn the key or if you close the door and step retracts the hazard light blink than eventually go off.  tested the solenoid back by the engine had someone push the button to boost from chassis batteries no 12 v on the side going to the engine. tried button inside the back compartment nothing. so that is where i stand at this point if i jump the back solenoid engine starts...once running i still have check engine light but looking at monitor dont see anything serious that stands out

i also checked the smaller wires off the solenoid drivers side front i get like 3 volts back boost solenoid about same plus all the wires are white confusing also.thinking about replacing both solenoids. i appreciate everyones help on this i can build a house but new gig for me..

Rick

[Rick Penick]

Fred,

You are hell of a guy i wish i had this in tucson i am sure i be done by now. when i do get it to tucson would like to meet up.

thank you for your input.

rick

[Fred Brooks]

   Rick, Thanks for the kind words, my email is in my profile. Maybe I'll see you in the future. Fred