Posted by sotxbill on May 01, 2019 at 07:03:22 from (104.5.24.112):
2003 buick la sabre 3.8 v6... engine shuts off when temp gets to 155 degrees...
Good fuel pressure at 46 lbs running and jumps to 50lbs when it cuts off... Starts and runs perfect cold, and warms up to 155 and then its like you turned off the key. Let cool down and repeat again... Its grandma's car so only has 87000. No codes or lights on the dash so thats useless.
cleaned throttle body and inspected idle control, egr is clean and free so its not sticking..
suspect crank shaft sensor next, ignition control module after that? Something else telling the ecu to cut off?? temp gauge and electronic temp on display both working correctly.
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