Does it boil over after running for about 10 minutes, and piss coolant everywhere?
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no , it just heats up to 260 it got overheated once but luckily nothing broke i beleive hes just going to get her a new waterpump because its his mom aka my aunt but thanks for your help guys ill let you know if that helps
if its anything like the f body sensor, the inside gauge is just a dummy gauge. my LT1 was showing like 260 on the dash, but my scan master only read 230. i changed thermostat and bled the system out ( it is a stubborn cunt and i wouldn’t be surprised if you didn’t fully bleed all the air out) use the bleeder screw and fill it with the cap off, if you fill it in the reservoir your just pissing in the wind. fill it before the t-stat opens and again after… assuming it is opening.
is that why i got laughed at when i told him it was a circular electric pump? and had to run to autozone and double check which the right pump is ass
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So hers is an aftermarket Electric pump? or the stock Shaft-driven one?
I’d also suggest checking the output of the sensors like was recommended; I had that issue but in reverse. My gauge was reading correctly, but the prior owner of my car hacked the PCM temp sensor wires with crimp connectors and no weather protection so they corroded out and the PCM was seeing engine temps all over the place (and causing it to run like shit; took me MONTHS to find this issue…)