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Maineah

Toyota Advanced Member
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Posts posted by Maineah

  1. On 4/13/2022 at 8:16 PM, extech said:

    i dont see any pictures of a 3 post relay

    Yes  there was. He took it out and replaced it with a 4 post typical shotgun approach. There is a fair length of small black wire going to the negative battery post for the isolator ground instead of connected to the isolator mount or any decent close ground. The shorter the length of wire at 12 volts the better.

  2. On 4/5/2022 at 12:57 PM, Marinette said:

     

     

    It is working better but not 100% all the time and it's scary to try to get on the freeway and not know whether it's gonna shift or not. 

    More often than not the thin cable inside wares a grove in the outer cable where it curves the most so no amount of lube will fix it. Those transmission are exceptionally dependable and they do an amazing job with a vehicle that's way over weight. Although the cable replacement is pretty straight forward it does require the trans pan to be removed so it's not a really easy backyard project. It's real name is a TV cable (throttle valve) often called a "kick down cable".

  3. 16 hours ago, neilp said:

    I have never had to work on the Toyota's tranny but on other brands I have had to replace vacuum lines to the transmission when the shifting was not working correctly. I'd check any vacuum lines going to the transmission.

     

    It doesn't have any.

  4. You should be able to move the cable with your finger engine off there should be a fair amount of movement 1/2 an inch or so with and easy return of the cable. If isn't moving it maybe stuck full throttle that will cause it not to shift. If it's just broken it will quick shift. There are two cables one for the throttle the other for the trans. Because of the MH weight full throttle is pretty normal so I guessing it's stuck full throttle. Not  a guarantee but the TV cable usually has a red boot at the throttle body. If all else fails the trans pan will need to be dropped to have a look.

  5. Most likely you have the single small wire isolator usually the two wire is used for transmission starting isolation. The small wire is for the key switch. So there are two type of relays that look exactly a like that one is strictly for starting the engine it can not be use as an isolator relay it will over heat and eventually fail the other is continues duty it can stay on indefinitely might get a little warm but not hot if it's hot it is the wrong relay. The small wire in the case of the isolator is what engages the isolator nothing else. Volt meter/test light at this point is your friend. With the key off there should be zero voltage at the small terminal. The case of the isolator relay it needs a good body ground to work properly if it is poor this could be your clicking issue, poor grounds can do some very strange things . With the volt meter one probe to a known good ground the other to the case of the rely there should be zero voltage when it's on. If it has two small terminals one should have a small wire going to ground for RV use. Can't see it from my house so I hope this will work for you.

  6. 14 hours ago, thewanderlustking said:

    What exactly is “blown”?  These are damn near bulletproof.  The only kinda weak point is headgaskets.  I could be wrong, but I swear I have seen head gasket replacement recommend as an actual service item!  In these heavy rv’s, the 22re really get abused.  And well we are talking 30+ years old too. 
     

    Full rebuild kits aren’t that bad if the old motor isn’t badly hurt and in need of lots of machine shop work. I would keep

    it and go through it. Beef it up, flow the head and intake (if the intake is the same that is). If it needs machine shop work, punch it out!!!  
     

    Anyways, just super curios as to what went wrong. 

    The biggest issue with the 22RE was the timing chain and tensioners. The 22RE had a single roller chain (22R's were double) I remember having to replace timing case covers, chains, tensioners, oil pumps. They were extreme cases but many people didn't seem to notice or care about the rattle. Both engines had head gasket issue but I would not call it chronic.

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