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First of all: hello.  

So I was trying to get to my throttle body yesterday to clean it and I accidentally snapped a hard plastic line coming from the back of the engine to the air duct. I went to my local O'Reilly's and the guy over there told me that it was a vacuum line. He said that if I connected the two pieces with a hose, put on a unicoil to prevent kinks and secure it with clamps, it should work like normal. I've done that and when I took it around the block for a test, the engine temp got abnormally high. The throttle response was sharper and the the revs was consistent with the amount of gas I put in, but the temp got halfway up the gauge after 4 minutes on driving at 35mph. Is there anything that can be done to keep the temp down?

Here's pictures of the setup:

 

hmm!

nice fix on the hose..

how hot is it actually getting/????

as i would expect that engine to run at half way up the gauge or even higher...

195F to 210F is kinda expected on those..

and yes.. they will come up to full temp when the thermostat is working properly in 3 or 4 minutes..  depending if you are idling or driving..

does the fan cycle on shortly after the upper radiator hose gets hot??? then cycle off..  in a few minutes the fan should cycle back on again...

the proper thermostat temp  is a 192F...