Brake and tcs lights after master cylinder swap

[Ken226]

Where did you get the master cylinder from.I wouldn't be surprised if you used an after market / cheap master cylinder,if the switch it comes with,isn't playing nice with your truck.

Yea, these days, if he got it on Amazon or eBay, the bad switch is probably the least of his worries.

I'd rank brake parts right up there alongside parachutes and heart valve replacements, as things I would NOT buy on Amazon.

'Rook same, You buy now' (borrowed from Ed)

 

[Jamicord]

I bought the master cylinder at Napa auto parts. Is there any way to check and make sure it is good? I tried using the multimeter and when I touched the probes to the plugs, there was no reading.

 

[Jamicord]

Yes, that is the part of the master cylinder that I am talking about that I checked with the multimeter. It came attached to the master cylinder when I got it.

 

[Ken226]

I bought the master cylinder at Napa auto parts. Is there any way to check and make sure it is good? I tried using the multimeter and when I touched the probes to the plugs, there was no reading.

Yes, you can test it.

But, you are still leaving out some pertinent info. Do you know how to use a multimeter?




A multimeter has lots of settings, and in order for it to be useful you need to know what those settings are and what they do.

Earlier, you said "Gage", so I'm assuming your multimeter looks something like this?






The settings you will need are:
1. On the left, where it says OHM, Rx1
And
2. On the bottom,where it says DCV, 50V

Is that what you did earlier?

 

[Ken226]

First,

Switch your truck ON, then set the multimeter to DCv, 50v and follow the instructions in post 18, the 3rd paragraph.

To clarify, this is the TRUCK connector, not the sensor, were testing here.

 

[Ken226]

2nd

To test the sensor/switch

Get a pump, and pump the fluid out of the master cylinder. Get as much out as you can. The fluid level needs to be BELOW the switch.

Set the multimeter to OHM Rx1, then go back to post#14 and follow the instructions in paragraph # 2

 

[Jamicord]

Awesome I will do that this afternoon and post back the results I get. Thank you guys for all of your help!

 

[Daw14]

Awesome I will do that this afternoon and post back the results I get. Thank you guys for all of your help!

A turkey baster works well for this , you don’t need to tell the wife ,just get a replacement before she catches on.

 

[Ken226]

A turkey baster works well for this , you don’t need to tell the wife ,just get a replacement before she catches on.

The forum needs to allow at least two emojis at the same time. I couldn't decide between the laughy face one and the heart eyes one.

I'm ordering a turkey baster on Amazon for my shop right now!

 

[Wild one]

The forum needs to allow at least two emojis at the same time. I couldn't decide between the laughy face one and the heart eyes one.

I'm ordering a turkey baster on Amazon for my shop right now!

If you don't have a meat thermometer,they're also a nice thing to have laying around,lol

 

[Ken226]

If you don't have a meat thermometer,they're also a nice thing to have laying around,lol

I have plenty of those.

I built this thing back in 2019, so meat thermometers are a necessity:

 

[Adamcr68]

I have plenty of those.

I built this thing back in 2019, so meat thermometers are a necessity:View attachment 569426

That’s awesome! Did you get the guard dog at the same time? I would think you don’t worry about anyone hooking up to it & driving away.

 

[Wild one]

I have plenty of those.

I built this thing back in 2019, so meat thermometers are a necessity:View attachment 569426

Steel was noticably cheaper back then That's a hell'va BBQ,do you competitions or is this just for personal use Ken

 

[Ken226]

That’s awesome! Did you get the guard dog at the same time? I would think you don’t worry about anyone hooking up to it & driving away.

He's pretty diligent about security. While the smokers cooking anyway. Other times, not so much. But security isn't free. There's a tax!

You can see the tax man hidden in the background, waiting for his cut!

Steel was noticably cheaper back then That's a hell'va BBQ,do you competitions or is this just for personal use Ken

Yea, but even back then it wasn't cheap. About $6k in 1/4" thick 4' x 8' steel sheets, axles, springs, wheels and tires.

No competitions. Not yet anyway. Not enough time due to my job. But I retire next year, so perhaps then.

 

[Ken226]

After design it in CAD to have the CG at a specific location, so it would be safe to tow, it's always nice when the actual first towing test matches expectations. It ended up at 3000 lbs

I built it in April 2019






First time doing a cook that actually utilized the space was when I loaned it to relatives, in 2021.





I towed it from WA state to Oklahoma and put it in storage back in 2021. It was a pleasure to tow with the wife's Durango, even over all the mountain ranges between here and there.

 

[js12278]

AlfaOBD and a quality OBD device would have definitely saved you time Ana money in this situation.

 

[TJP440]

Sorry, had to add a little humor, This has almost always worked, Do keep us posted