The Stupid Engine Questions Thread

AK49BWL · Nov 9, 2019

Compression test each cylinder maybe? Someone else would have to chime in with other potential ways. And obviously if you see any fluid leaks coming from between the heads and the block it's a pretty good indicator of bad gaskets.

Jcauli82 · Nov 9, 2019

Thanks for that anything helps I changed intake gaskets now I'm reassembling and hoping when it's finished that was the cause of my woes

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bigfutz · Nov 10, 2019

east302 said:
Yeah, that note about removal was in the instructions.

If yours are leaking, that isn’t making these replacements look very promising. Every now and again you’ll see someone post about issues.

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I see why they call them Spider Injectors [emoji887]

Jcauli82 · Nov 15, 2019

Took my heads off today and the #6 piston looks kinda odd and I'm just wondering how concerned I should be with it.....the head gasket was bad

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BigMyke · Nov 21, 2019

Where can I find this oil filler tube neck? Can I use my oem stock oil cap with this tube in depicted in the picture? I can't find anything from dorman or ac delco.

bigfutz · Nov 23, 2019

BigMyke said:
Where can I find this oil filler tube neck? Can I use my oem stock oil cap with this tube in depicted in the picture? I can't find anything from dorman or ac delco.

Me too. One of my 95’s has it, other doesn’t. It’s a nice feature.

BigMyke · Nov 26, 2019

I found the part number. Works great. It fit my 97' 5.7L silverado.

GM 12553514 TUBE ASM-OIL FIL

Tweakergeeker · Dec 15, 2019

99z28monster said:
Why wont my damn truck idle under 1500 rpm? I am thinking a leak in the throttle body gasket am I on the right track? From what my buddy told me the truck doesn't really have any balls either. " I am in Iraq so I don't know" it is a 5.7 in a 94 silverado 4x4 with a 14 bolt rear. other than that everything else is stock mechanically.

Tried turning ththe curb idle down on the actual throttle spin itself?

BigMyke · Jan 3, 2020

This sensor is located on the passenger side, bank 2. It is below the sparkplugs and above the oil pan. I cannot figure out what this sensor is. I would like to replace it as I believe it is leaking.

1997 Silverado 5.7L

Thanks!

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AK49BWL · Jan 3, 2020

That's the knock sensor. Likely not the sensor itself is leaking, but the seal around it (if in fact that's what is leaking there at all) - when you take it out you'll lose all your coolant because that's where it's screwed into the block - right in the bottom of the cooling system.

The Stupid Engine Questions Thread

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