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DownTheAvenue

Sunny South

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Posted: 07/22/20 06:59am Link  |  Quote  |  Print  |  Notify Moderator

Erratic electrical problems are almost always associated with a ground issue or electronic control boards.

time2roll

Southern California

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Posted: 07/22/20 08:28am Link  |  Quote  |  Print  |  Notify Moderator

I would find a new mechanic.


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Grit dog

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Posted: 07/22/20 10:54am Link  |  Quote  |  Print  |  Notify Moderator

Bottom line, your other thread says you’re getting a new truck.
I would spend $0 and zero time on this issue.


"Yes Sir, Oct 10 1888, Those poor school children froze to death in their tracks. They did not even find them until Spring. Especially hard hit were the ones who had to trek uphill to school both ways, with no shoes." -Bert A.

2oldman

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Posted: 07/22/20 12:37pm Link  |  Quote  |  Print  |  Notify Moderator

covetsthesun wrote:

Ok...I'll bite. FREDs????
Here's what I could find: Freaking Ridiculous Electronic Device

ktmrfs

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Posted: 07/22/20 02:39pm Link  |  Quote  |  Print  |  Notify Moderator

most seat heaters have a thermal switch built into the element to turn off the heater (open the switch) when the temp gets above a certain point, then turn it back on below, or if the heater is otherwise temp controlled still have a thermal "runaway" switch. It's possible the switch is opening, then closes again, but takes less time the second time to heat enough to open, and then the third time open almost immediately. The switch is unfortunetly usuall in the element in the seat and usually not individually replaceable. If thats the culprit, likely a new heating element is needed.


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covetsthesun

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Posted: 07/22/20 04:52pm Link  |  Quote  |  Print  |  Notify Moderator

2oldman wrote:

covetsthesun wrote:

Ok...I'll bite. FREDs????
Here's what I could find: Freaking Ridiculous Electronic Device


LOL! I've got a lot of FRED's!![emoticon] The truck has had so many Gremlins over the years I believe it has multiple personalities. Never know what it's thinking. [emoticon]

covetsthesun

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Posted: 07/22/20 04:54pm Link  |  Quote  |  Print  |  Notify Moderator

ktmrfs wrote:

most seat heaters have a thermal switch built into the element to turn off the heater (open the switch) when the temp gets above a certain point, then turn it back on below, or if the heater is otherwise temp controlled still have a thermal "runaway" switch. It's possible the switch is opening, then closes again, but takes less time the second time to heat enough to open, and then the third time open almost immediately. The switch is unfortunetly usuall in the element in the seat and usually not individually replaceable. If thats the culprit, likely a new heating element is needed.


We just got two new heating elements installed a few weeks ago. It's still doing the same thing it did before we had the old ones replaced. What's the chances that the new elements (both) are defective?? cts

free radical

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Posted: 07/22/20 08:35pm Link  |  Quote  |  Print  |  Notify Moderator

If you were close to Tx Id sugest to see Scotty Kilmer or just hit his site on YT and ask.

Even simpler solution is to put your pants on when driving ! [emoticon]

Ive been in minus 30 winters and never needed seat heater,simply wear thermal underwear.

CharlesinGA

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Posted: 07/23/20 10:52pm Link  |  Quote  |  Print  |  Notify Moderator

This is a chronic problem on early 2000's GM products. You need to go to a GM/Chevy forum and do some searching.

Charles

covetsthesun

missouri

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Posted: 07/25/20 12:53pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks everyone...I gave our mechanic all the ideas. Next time the truck's at the dealership he's going to spend quality time tracing things. It's become a mission with a few of the mechanics.

It has over 350k well maintained miles....and we are getting a newer truck or suburban. But, the old girl still has grit and will help keep the miles down on the newer vehicle.

This Chevy dealership has treated us very well over the years. GM would be proud of them. Anyone know what the mileage record is for a truck?? cts

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