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I did something slightly retarded. My car is LS2 powered and the heater control valve had failed, so as a temporary fix I just used one of the existing coolant hoses and made a loop from the input to output of the heater circuit on the water pump. During the processes a fair but not huge amount of coolant came out the hose and onto the floor through the engine bay and eventually stopped. After the fix I had to run the car for a few seconds to back it up, but somehow in the space of like 30 seconds I somehow loving forgot that I hadn't topped it back up and left it idling for approx 5 minutes. The temp gauge started off low and as I gently revved it suddenly hopped up to a couple of marks higher than usual (but nowhere near red or the end of the scale). After that "oh poo poo" moment I realised what had happened and duly topped it up. After that it was running like absolutely nothing had happened. I took it for a quick drive and it held temperature fine and drove perfectly. After the incident I shut the car down the engine bay didn't seem weirdly hot and there weren't any weird smells. Is there any chance I've ruined anything, or am I just being paranoid?
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Jun 6, 2014 20:51
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| # ¿ May 16, 2024 19:39 |
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Thanks all, I will keep an eye on coolant and oil to ensure nothing is untoward. I am very much a novice at this sort of thing so I attempted the fix gingerly and carefully only to be let down by a moment of absent mindedness  I can't remember the exact amount of time I had it running but it might not have even been 5 minutes. I will do as Fucknag suggested and raise the front end of the car and make sure any air bubbles are removed. I'm in the UK so it's not quite as easy to get LS parts as the states but by no means impossible so it's probably a waste of energy to worry too much! Having an LS2 in the UK is rad though 
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Jun 6, 2014 22:09
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Fucknag posted:
Oh, I forgot to say, yes the engine was started from stone cold.
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Jun 6, 2014 22:10
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IOwnCalculus posted:Yeah, unless you were romping on it the entire time, you're absolutely fine. Even if you were it's probably fine. Indeed, I've seen all the guys with heavily boosted LM7/LQ4 etc setups too, they seem to be practically indestructible! I wish we were less scared of displacement in this country - our pickup trucks get lumbered with piddly 2.5L turbo diesels, they always sound laboured, even with the truck empty. A surprising percentage of our cars are diesel too which is biting us in the rear end because of particulates suffocating everyone in big cities.  carbon footprint I did as was suggested and ran the car with the radiator cap off and watched for bubbles, there was nothing appreciable and the car seems oblivious as to what happened so I probably didn't mess up as much as I thought. Will still keep an eye on coolant and oil, though.
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Jun 7, 2014 16:40
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