Plugged EGR valve.
Reviews of OEM Toyota EGR valve
10 votes
I have 2013 Prius with revised piston rings under 87k. The vehicle was cleaned recently at the dealership/ stealership with replacement of EGR valve under 500k miles first time. It costs me almost $1200- big mistake.
Have been chipping away at replacing the HG for several days now... The last couple days was finally able to get to the EGR system... I took some pictures of my EGR valve and cooler. The last four pics show the cooler and valve. You literally can barely see light through the cooler, it is that clogged. Very likely contributed to this issue.
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