Pressure will fluctuate a bit, as long as there is pressure should be fine. If she's running a bit warm that will thin the oil a bit which will lower oil pressure.

 

Nope she runnin normal. Can u buy the bolt that tightens the idler pulley that tightens the belt? I took my son to er and notice that it started squeling well the bolt is broke. The belt is tight should i be ok to drive like a half a mile home.

 

Oil filter design can affect oil pressure, here's a good thread on oil filters:
https://www.cherokeeforum.com/f2/oil...-things-74433/

I can not find an idler pulley bolt @ Advance on-line but if you have a good hardware store near you they should be able to match the bolt.

Yes you should be ok driving home as long as the belt is tight enough to run the alternator. I hope your boy is ok..... I've been to the ER with my daughter a couple times.... not fun!

re the back flush kit, I have seen the plastic cap fail after a year, I would return it if you have not used it. I would Just use the 'Prestone® Super Radiator Flush' and drain from the lower radiator hose (when it's cool) and pull the thermostat and use your garden hose through there and reflush the heater core (both directions) again.

 

Well got the adjuster bolt today had to go to dealer. 16 bucks

 

How can i tell if the serp belt is to tight or not tight enough

 

 

My mom's van was doing the same thing! Found out it was an air pocket in the system. Used a vacuum tool and put in new coolant. Heat works great and engine stays nice and cool.