Re fuel shut off solenoid on 8.2ltr detroit

Topic: Re fuel shut off solenoid on 8.2ltr detroit (Read 1454 times) previous topic - next topic

Re fuel shut off solenoid on 8.2ltr detroit

February 02, 2024, 11:42:23 am

Hya all, after getting everything virtually finished on the villa, brakes everything fine, I've now got a slight problem with my electric fuel solenoid, that's attached to fuel governer, it has happened before but not for a long time, the engine can be running perfectly one minute and then all of a sudden, it starts to run a bit uneven and then cuts out, and stops and then won't start again for a while, anyway I lifted up the bed at the rear earlier, to listen for the sound of the click that the fuel shut off solenoid makes when I turn the ignition key on and off and couldn't hear the click, so i went back and touched the solenoid and it was hot, so i left it to cool for about 10 minutes, then tried the same again on and off with the key and I could hear the click and then it started immediately again and ran OK, I had it running for a good hour and it never stopped, it has done this before in the past, but hasn't done it for a long time, but in the last week it's done it a few times, when the engine is running fine I check the solenoid and it's not hot at all, one day last week I had it running for over 3 hrs, no problem whatsoever, I don't know if I have a problem with the wiring or maybe the solenoid is faulty and won't energise properly, I just can't figure out why it suddenly gets hot and shuts off fuel supply, I have found a new 8.2ltr solenoid on amazon so I'm gonna buy one anyway, it's a handy thing to have as a spare, but it's very difficult to find a problem when it dosent do it all the time, does anyone have any suggestions please

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #1 – February 02, 2024, 12:46:45 pm

How many wires go to the solenoid? If it has three some solenoids have a pull stage with high amp draw and a hold stage with a low amp draw. Two wire would not have that feature.

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #2 – February 02, 2024, 03:52:41 pm

Quote from: craneman – February 02, 2024, 12:46:45 pm

How many wires go to the solenoid? If it has three some solenoids have a pull stage with high amp draw and a hold stage with a low amp draw. Two wire would not have that feature.

Quote from: craneman – February 02, 2024, 12:46:45 pm

How many wires go to the solenoid? If it has three some solenoids have a pull stage with high amp draw and a hold stage with a low amp draw. Two wire would not have that feature.

Theres only 2 wires, 1 live from ignition switch and 1 ground, they were joined by a 2 pin plug originally, cause i remember a few years ago that I had a similar problem and once I had removed the plug and joined the wires I hadn't had a problem, now until recently I hadn't started the engine for probably 6 months and I thought maybe it was sticking sometimes, I had a friend turn the ignition key yesterday for me while I had head next to the solenoid and I could here a very faint noise like it was trying to work, but after it cooled down I turned the key and it clicked in straight away and started, I switched it off and back on again no problem., it maybe that it would be worth running a new wire but a little thicker, the vehicle is nearly 34 year old so there is a chance that some of the wiring may have deterioted and every now and again I get a drop in voltage I think what I'm gonna do is order a new one, I saw one on amazon for about 56 dollars, it's worth having as a spare regardless, and then I'm gonna run a new wire from ignition switch all the back, and also a bit thicker spec wire, I would have thought that those solenoids draw a lot of amps and being 36ft away it's surprising how mutch voltage drop you can get, i mean my volt meter on the dashboard when the engine is running never shows more than 13.2 volts and yet if I go to the batteries which are just under the doorstep there reading 14.2 to 14.3, I've got my solar charge controller just above the batteries as close as possible, and that gives more of an accurate reading

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #3 – February 02, 2024, 06:51:19 pm

How strange.
I just had problems with my fuel shut off this week!

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #4 – February 02, 2024, 10:01:34 pm

Quote from: Moby – February 02, 2024, 06:51:19 pm

How strange.
I just had problems with my fuel shut off this week!

What was the problem with yours, have you got it sorted?

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #5 – February 03, 2024, 12:25:26 am

Quote from: kevo0000 – February 02, 2024, 10:01:34 pm

What was the problem with yours, have you got it sorted?

All fixed.
The plunger was so old that it basically fell apart so that the part that attaches to the shut off valve came off.
Good thing that it happened with the fuel valve open.
One set of mechanics had no idea what to do with an engine without computers and could not even find the solonoid.
I got to Desert Hot Springs and found a actual mechanic who knew what he was doing.
We shot the breeze for longer than it took him to fix.

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #6 – February 03, 2024, 04:43:12 am

Quote from: Moby – February 03, 2024, 12:25:26 am

All fixed.
The plunger was so old that it basically fell apart so that the part that attaches to the shut off valve came off.
Good thing that it happened with the fuel valve open.
One set of mechanics had no idea what to do with an engine without computers and could not even find the solonoid.
I got to Desert Hot Springs and found a actual mechanic who knew what he was doing.
We shot the breeze for longer than it took him to fix.

Oh so when yours broke, your engine kept running did it? , i live in UK so I don't know anyone over here that would have a clue what they were doing, all I have is the 8.2 workshop manual and the forum to rely on, I've had the vehicle since 2010, and over the years I've had to do everything myself, and with the help of various forum members I've fixed and replaced virtually everything you can think of, I've always had a bit of mechanical knowledge over the over the years, I've probably saved thousands of £££s in labour charges, I'm sure there probably is someone over here that has worked on them somewhere in the past, if there is something I'm not sure of, after reading the manual then eventually someone on the forum knows something that can help me,

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #7 – February 04, 2024, 11:31:29 am

Kevo,
Yes, that's what happened for me, but I would not guarantee that's the way it works 100% if the time.
I think I was just lucky.
Cheers

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #8 – February 04, 2024, 02:34:07 pm

Quote from: Moby – February 04, 2024, 11:31:29 am

Kevo,
Yes, that's what happened for me, but I would not guarantee that's the way it works 100% if the time.
I think I was just lucky.
Cheers

Yeah that was lucky, I went up to the villa today and started it first time no problem, and it ran for an hr switched it off, restarted it still no problem but I'm gonna get a spare definately, Do you know what, I found a new solenoid on amazon yesterday 55usd and postage to UK came to about 65usd in total, so i put it in the shopping basket,, but didn't pay for it straight away cause I wanted to be sure that the solenoid was the same as mine, cause sometimes parts change from different year models, but from what I could see it's the same part no. For all 8.2ltr engines, so i went back onto amazon earlier to pay for it and they have only gone and put the price up to 89usd, this is just in less than a 24hr period at a weekend, so i took it off my basket and il get it from somewhere else, even if it costs me a little bit extra, I've just emailed a chap at fleet products. Com in a place called calgary in Canada I'm sure they can sort it out for me, but on principle I won't buy it from amazon now, il wait until I find one from somewhere even if they haven't got one in stock, how mutch did your solenoid cost, just the part if you don't mind me asking thanks kev

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #9 – February 04, 2024, 02:53:58 pm

Be aware that you may have to do some electrical work as the plug in for the new unit was not the same as the old one.
Just a simple cut & splice is all.
Eh, just go ahead and replace it, it's just a socket wrench job.

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #10 – February 04, 2024, 02:58:31 pm

Try LarryBs to see if he has it. It will cost about double a cheap Amazon part but much better built in my experience.

Fuel Solenoids - LarryB's

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #11 – February 04, 2024, 03:20:07 pm

Quote from: Realmccoy – February 04, 2024, 02:58:31 pm

Try LarryBs to see if he has it. It will cost about double a cheap Amazon part but much better built in my experience.

Fuel Solenoids - LarryB's

OK thanks for that, I didn't realise that there cheap on amazon because of that reason, I would rather buy a genuine gm part, I will look at that link you sent me, thanks kev

Follow-ups
- Powertech es52fs controller

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #12 – February 05, 2024, 05:58:05 am

Quote from: kevo0000 – February 04, 2024, 03:20:07 pm

OK thanks for that, I didn't realise that there cheap on amazon because of that reason, I would rather buy a genuine gm part, I will look at that link you sent me, thanks kev

Well, it gets interesting, I just got up this morning had a look and that solenoid has gone back down to 59 dollars since I took it out of my shopping basket, can you believe that, I'm still not getting off them, no matter what,

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #13 – February 05, 2024, 10:00:11 am

Kev, we could have brought one with us to England and we are now in Looe just a few miles away from you. I will give you a call and arrange to meet at GV or your ship whichever you want for a cuppa.
John

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #14 – February 05, 2024, 03:19:49 pm

Quote from: John Haygarth – February 05, 2024, 10:00:11 am

Kev, we could have brought one with us to England and we are now in Looe just a few miles away from you. I will give you a call and arrange to meet at GV or your ship whichever you want for a cuppa.
John

Yeah no worries mate, as long as it's not the 13th of Feb as I'm going into hospital for a day operation, I don't think il be in overnight, I think i emailed you or messaged my phone number look forward to meeting up

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #15 – February 05, 2024, 07:32:19 pm

Good luck on the day surgery.

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #16 – February 05, 2024, 07:35:11 pm

Quote from: Moby – February 05, 2024, 07:32:19 pm

Good luck on the day surgery.

Funny I forget that anyone else is reading that, it seems like I'm just sending a private message ha ha

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #17 – February 05, 2024, 08:26:00 pm

Quote from: kevo0000 – February 05, 2024, 07:35:11 pm

Funny I forget that anyone else is reading that, it seems like I'm just sending a private message ha ha

Sorry to intrude

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #18 – February 06, 2024, 02:30:19 am

Quote from: Moby – February 05, 2024, 08:26:00 pm

Sorry to intrude

Na I was joking it was quite funny

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #19 – February 06, 2024, 02:32:53 am

Yeah going back to, your plunger that was so old and no good, did this mechanic just replace the whole unit, or did he repair it with a new plunger

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #20 – February 06, 2024, 08:28:14 am

Naw, total replacement.
$105 at the auto parts place.

Re: Re fuel shut off solenoid on 8.2ltr detroit

Reply #21 – February 06, 2024, 10:36:24 am

Ah that was alright then, well I think I may have found the problem with mine, I think i had a dodgy connection on the plug, so i removed it completely and joined the wires with one of connections encased in plastic, they use them in house wiring over here, both wires go into a hole and just screw down onto them, and then a small bit of insulation then over the joiner and then sprayed it with gt65 I don't know if you have that over there, it's like wd40 butter it has ptfe in it aswell, there both made by the same company, anyway I've had the engine running for over an hr, no problem, I've switched the ignition on and off several times and the solenoid seems to be clicking in and out perfectly, the next job test the brakes, I just didnt want to be moving up and down this blokes yard and it suddenly stops, so i had to be sure, anyway I'm pretty confident now that it will be OK, I think another thing is that I only started it up just before Christmas, July was the last time before that cause I had get the brake discs turned remove my hydraulic powerhead, and then getting hold of a reconditioned one took me months of searching, ended up getting one from fleet products. Com in Canada,, anyway it maybe quite possible that because I hadn't started it up for that long, the solenoid may have just been sticking a little, causing the solenoid to get hot, and once it cooled down, it seemed to work, so anyway I've been up here everyday this week starting it, touch wood it's all OK now, anyway I tried to find a spare anyway, From one of the other chaps that posted me a linc, but they didn't have one on there website, so in the end I went back to amazon after they had put the price up to89usd from 56usd because I had left in my shopping basket for 24 hrs, anyway I took it out of the basket, and then went back on it yesterday and the price had gone back down to 52 usd, which was 4usd cheaper than the original, how that works I do not know, but anyway I thought bite the bullet, I bought one as a spare, it's made in China, if the plug dosent fit like the other chap on the forum kindly said, just cut the wires and join, which I have anyway now

Affiliate Notice