grid heater problems in 6.7 - Dodge Cummins Diesel Forum
2013-2018 General Discussion General Chit Chat About the 2013 model year differences 6.7L 4th generation Cummins - NO ADVERTISING -

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post #1 of 230 (permalink) Old 01-08-2020, 10:38 PM Thread Starter
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Angry grid heater problems in 6.7

I want to share this information with anybody that has a Cummins 6.7 engine.
I had a catastrophic failure of my engine due to the grid heater Bolt, I had a hundred and eleven thousand miles on the truck.
I've had my truck for one year it's a 2016 Dodge Ram 3500 diesel.
I want to make people aware of the problem that will cost you around $20,000 or more.
This is a problem that both Dodge and cummings know about but are not doing anything to fix it.
The problem is the grid heater, after time the grid heater gets hot and melts the solder around the bolt and it falls out the bolt and washer falls down in the intake and goes through your valves and then goes to the piston, after bouncing around for several minutes it splits the sleeve and the block.
The damage to the engine includes destroyed head destroyed block.
I am posting this because this is what happened to my truck it's a very expensive fix.
I've been doing some research and finding out that this is a happening to an inordinate amount of trucks and there not doing anything about it.
They will not help with the cost of the repairs.

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post #2 of 230 (permalink) Old 01-08-2020, 11:08 PM
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There is a huge thread on here about this subject had you taken the time to look.

And, they obviously don't all fail in this manner, mine has 504.5K miles on it, and the same grid heater has been used for a very long time in these engines.

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post #3 of 230 (permalink) Old 01-08-2020, 11:11 PM
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Please post more info!

Case started, dealership experiences, invoice cost, etc.

Who repaired??

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post #4 of 230 (permalink) Old 01-08-2020, 11:18 PM
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Quote:
Originally Posted by Broken Diesel View Post
I want to share this information with anybody that has a Cummins 6.7 engine.
I had a catastrophic failure of my engine due to the grid heater Bolt, I had a hundred and eleven thousand miles on the truck.
I've had my truck for one year it's a 2016 Dodge Ram 3500 diesel.
I want to make people aware of the problem that will cost you around $20,000 or more.
This is a problem that both Dodge and cummings know about but are not doing anything to fix it.
The problem is the grid heater, after time the grid heater gets hot and melts the solder around the bolt and it falls out the bolt and washer falls down in the intake and goes through your valves and then goes to the piston, after bouncing around for several minutes it splits the sleeve and the block.
The damage to the engine includes destroyed head destroyed block.
I am posting this because this is what happened to my truck it's a very expensive fix.
I've been doing some research and finding out that this is a happening to an inordinate amount of trucks and there not doing anything about it.
They will not help with the cost of the repairs.
Thanks for taking the time to post your unfortunate experience.
I have disconnected mine,if I am ever in arctic conditions I might temporarily hook it back up if required.
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post #5 of 230 (permalink) Old 01-09-2020, 12:15 AM Thread Starter
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I contacted the corporate office for Chrysler and they will not do anything for me.
I'm using the diesel mechanic that I have known for a long time, and he is certified ASME.
He is about half the price of what Dodge would charge me to put a new engine in. The long block is $14000.00
I got a long block for $7220.00 it has five year 100,000 mile warranty and a two-year roadside assistance.
DFC Sales out of Calgary Canada
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post #6 of 230 (permalink) Old 01-09-2020, 12:19 AM Thread Starter
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I believe there is a updated grid heater or a aftermarket grid heater that does not have the bolt in it.
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post #7 of 230 (permalink) Old 01-09-2020, 12:43 AM
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Do you plan on deleting the heater now?

I removed mine last year. Some guys ( maybe girls and non-binery people too) disconnect the heater power at the solenoid.

It is a poor design, and they will fail given enough cold starts. If you wait to start as it heats, itll fail.

How do you start your truck in the cold? Did you wait for the heater light to go off before starting?

You should search grid heater here and post in the thread poll about grid heater failure.

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post #8 of 230 (permalink) Old 01-09-2020, 12:57 AM
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The only common factors in the engine eating bolt threads is..... none! It's a sh** design, and may or may not drop.

Are cold climates and winters using the grid heater constantly, and waiting to start common factors in failure? Have any users in warmer climates had the bolt drop?

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post #9 of 230 (permalink) Old 01-09-2020, 01:20 AM
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So, get a big money lawyer and get all the others who have had similar failures together and file a class action law suit against FCA and Cummins.
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post #10 of 230 (permalink) Old 01-09-2020, 01:28 AM Thread Starter
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Yes the new engine has the delete. I did not know there was a problem with it, if i would have know i would have taken out.
I normally turn the key on to start and let it heat up. Yes waited for the heater light to go off before starting.

What is the thread poll ?? That is what i was doing by my post?
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post #11 of 230 (permalink) Old 01-09-2020, 01:33 AM
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You could post in this thread.

https://www.cumminsforum.com/forum/2...to-engine.html

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post #12 of 230 (permalink) Old 01-09-2020, 01:37 AM Thread Starter
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yes me. our weather has been on seasonably warm.
the shop sees quite a few of these go bad.
The company that I got the new long block from said they see upto 1000 per month, and the shop that i wanted to rebuild my engine is 6 months out because of this problem.
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