Car Overheating - MR2 Owners Club Message Board
 
LinkBack Thread Tools
post #1 of 2 (permalink) Old August 5th, 2019, 20:33 Thread Starter
Registered User
 
Join Date: Feb 2019
Posts: 9
OldTrader Rating: (0)
Car Overheating

Not really sure what to do at this point. My car is overheating on the highway after 10-15 mins and I have to pull over every time to let it cool down/if I rev long enough at 3k~ while I'm bleeding my coolant the temp will also start to creep up. Heater core is hella hot when it gets going so I don't think the system is clogged. So far I've bled the system to high heaven and wasn't getting many bubbles from the heater core drain plug after a while, I've swapped the thermostat twice, the second one being a Toyota OEM one, I've changed the water pump (which was a food processor essentially when I replaced it it was so corroded, I also changed the radiator out so it can't be coolant related I'm thinking. Currently I've got a small oil leak that's dripping from the A/C compressor (not working) so my intuition says it's an oil pump failure since it takes so long to overheat and doing a leak fluid test/compression test didn't show signs of a BHG. Thoughts anyone?
George Mendez is offline  
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old August 10th, 2019, 14:29
Lifetime Gold
 
Join Date: Jan 2007
Location: Ithaca, NY
Age: 67
Posts: 11,650
OldTrader Rating: (3)
A failed oil pump will not cause an engine to overheat. It will cause it to seize, and at that point there is no doubt.

Did you bleed the coolant by the book? There is also a bleed valve on the radiator and at the engine. The heater core is not the only one. I would suspect that there is still air in the system. Do you ever get bouncing idle? Does the radiator get hot, and is there a temperature difference between the inlet and outlet? Is the situation better for a while after you do a bleed?

There are also other causes for overheating. The ignition could be out of time, the airflow meter could be leaky or defective, the fuel could be of insufficient quality, too much carbon in the cylinders or some other condition that could cause detonation.
rmeller is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the MR2 Owners Club Message Board forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: (0 members)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome