jefftreece

thank you so much for the clarifacation. everybody here is so great. thanks

anybody else have any ideas not exactly sure where the mushroom valve is? thanks

thank you for the info I will look into that.

my engine check light and trac light are on I pulled the code and it is a 71 egr malfuntion. I have been doing searches and have not found any thing to solve the problem hope some body out there has some ideas on where to start. my car is a 91 ls400 with 153000 miles on it, the car runs the same with or without the lights on they do occasionly turn off . thanks