Engine Help diagnose random overheating??

chrlsful

Active Member
Mar 6, 2021
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Lawrence Swamp, S.Amherst, MA
used to use thread treatment (had copper in it) just got cached up & added to the problem. Changed to a newer type (CRC or some other name brand, 'permatex'?) not much better but some. Just started using the new (1, 2 yrs?) caliper grease. None back for nxt change but I think it'll B da best...
Again...alu to steel aint good~
 
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7991LXnSHO

wanna catch the space herp
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Sep 1, 2010
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used to use thread treatment (had copper in it) just got cached up & added to the problem. Changed to a newer type (CRC or some other name brand, 'permatex'?) not much better but some. Just started using the new (1, 2 yrs?) caliper grease. None back for nxt change but I think it'll B da best...
Again...alu to steel aint good~
What I have been using is like a big, silver crayon. It’s not as messy as the more liquid stuff with a brush in the lid. It’s also slower to get all the threads coated to my satisfaction.
Is anyone else using caliper grease or is really sold on a certain brand and type of anti seize?
 

limp

wrap a little cheese around it and its a done
Oct 4, 2020
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Is this similar to the modular ford engine spark plug problems I read about?
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
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polk county florida
Is this similar to the modular ford engine spark plug problems I read about?
from hang'n around that shop for several years I noticed it was two spark plug problems, I think it was the 5.4 mod engine, blowing spark plugs out, and crud build up around the end of the plug that made them nearly impossible to remove.
I only remember twice when the head had to be removed
 
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TomOsiris

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May 19, 2019
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from hang'n around that shop for several years I noticed it was two spark plug problems, I think it was the 5.4 mod engine, blowing spark plugs out, and crud build up around the end of the plug that made them nearly impossible to remove.
I only remember twice when the head had to be removed
Funny enough, I had a 5.4 2v that also blew a head gasket.
The earlier 2v engines did not have enough threads in the head where the spark plug threads in, over time with enough vibration they would wiggle loose and start to vibrate, this vibration would eventually weaken the threads to a point where BANG we have liftoff and send a plug up through the hood.
When fomoco changed to a 3 valve 5.4 a few years later, they overcompensated and the plugs would actually get stuck in the head and be nearly impossible to remove without damaging the threads, similar to the situation I am in now.
 
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General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
22,753
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polk county florida
Steel used against aluminium with liquid flowing through it has a corrosive effect (electrolysis), you know, all that scientific crap I did pay any attention to in school.
I just have trouble remembering now.
 
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manicmechanic007

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Sep 26, 2017
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You have the ones where the plug breaks in two and you have to go in with the Lisle 65600 tool to remove the bottom portion limp?
Do Tune it up more often 75k miles max
Do Clean the injectors (thru the rail using the special chit) and clean the plate / upper intake first with carb foam and then the plugs come out easier
Last one I did like that only one broke off
 

manicmechanic007

Mustang Master
Sep 26, 2017
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broken plugs.jpg
 

limp

wrap a little cheese around it and its a done
Oct 4, 2020
2,085
1,385
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Florida
You have the ones where the plug breaks in two and you have to go in with the Lisle 65600 tool to remove the bottom portion limp?
Do Tune it up more often 75k miles max
Do Clean the injectors (thru the rail using the special chit) and clean the plate / upper intake first with carb foam and then the plugs come out easier
Last one I did like that only one broke off
No, I have a real truck
DSCF0803.JPG
 
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limp

wrap a little cheese around it and its a done
Oct 4, 2020
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1,385
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Florida
I’d give you flack for having a Chevy truck, but with the Ford HD trucks having crunchy axle tubes and driveshafts lately, I won’t bother.
I do not fit in fords... Not sure why, but they just are not built for my chubby little frame... Arm rests are the wrong height, seats don't every feel comfortable, pedals and steering wheel are out of whack ( for me)..... Chevy trucks are like the few times I have driven a 911.. OH MY, does this feel good...LOL
The verdict is out on my new truck... I rolled the dice and got the 3 liter straight six diesel chevy came out with in 2019. ( My truck is a 2020) While I love my truck, I REALLY love this engine, and I am the LAST person to ever think I would have a diesel.. My concern is this engine is an Engineers nightmare and if it turns up problematic, it will be ugly.....
 

manicmechanic007

Mustang Master
Sep 26, 2017
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Your Chev Limp, can't be much worse than a new Ford even with some trouble down the road
Hell, Fords got trouble now
Our old still applies joke at ford for the GM boys was
"they just lease the new GM products because they cant afford to sell you one" (with all the recalls and problems)
Ford has so many problems now with sticking turbo vanes and ecoboost turbo lines failure et al. I do not blame anyone evermore for buying whatever
Hate to say it but IMO Tesla makes a good product these days
 

limp

wrap a little cheese around it and its a done
Oct 4, 2020
2,085
1,385
133
67
Florida
"they just lease the new BMW and Mercedes products because they cant afford to sell you one" (with all the recalls and problems)
Fixed it for you.... I found out why German cars that sell for over 100K are for sale for 10K not too many years later...... TOO expensive to fix, and they need LOTS of fixin as they age.....
DSCF0119.JPG
 

chrlsful

Active Member
Mar 6, 2021
194
26
38
Lawrence Swamp, S.Amherst, MA
"...using caliper grease..."
as is in evidence 'I aint a gud writer'.
"...Just started using the new (1, 2 yrs?) caliper grease. None back for nxt change but I think it'll B da best..."

But "Yes" I am happy spreadin CRC black caliper grease (silly cone I think?) all
around (as never-seize).