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Toyota Repair/2003 highlander 2.4L. Was run hot do to no oil


My kids car so I got what happened from her. They were driving home, tha/c stopped blowing cool , temp gage was not reading the car started to make noise and shutoff. The engin was overheating blow all the coolest out. I go out to get it and found that there was no oil.   I had a few qt so I put it in refilled the coolest.  Started it up and drove it on my trailer. Got he and was checking it out  did comprsion test 1/ 150, 2/150, 3:140, 4/150..all are40-50psi off.  Need advice run it or do I need to look for heat damage. To pistons and bearings?? Please help I just replaced all of the Timing chain and everything with it.  It was running like a new one when they left the house. Thank you for your time on this problem

The compression readings do not indicate a piston and ring problem, normal is around 170psi, the compression you have is not keeping the engine from running, at this point I see no reason to not drive it and see what it does, does it overheat, is there any noise any coolant or oil leaks? Then go from there.

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Ted Ritter


I have more than 28 years experience as toyota technician, I will be able to answer most questions related to the Toyota product line up to the present year models,I am located in the US but welcome questions from other regions of the world. When asking a question please provide specific information: year,model, engine,transmission information. Provide as much information as possible including a brief repair history if possible. I have been a volunteer here for more ten years an have answered over 16,000 questions helping Toyota owners with their problems and save thousands of dollars without any compensation, some of my answers are published on many other websites including google and various automotive forums. DONATIONS ARE VERY MUCH APPRECIATED, IF YOU HAVE RECIEVED HELPFUL INFORMATION PLEASE MAKE A DONATION. AS OF TODAY (JULY 22, 2014) ALL REQUESTED GRAPHICS, ILLUSTRATIONS, DIAGRAMS, PHOTOS, WILL REQUIRE THE MINUMUM DONATION UP FRONT.


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