I was doing the thorough version of the 100K PM on my 2003 Pilot, which turned 265K not long ago. Replaced all the moving parts on the front, pulled the plenum and valve covers to change seals, gaskets, plugs and adjust valves. In the process I noticed that the EGR passages and ports in the top of the plenum were CAKED with carbon deposits - it looked like someone had stuffed it with coffee. So I cleaned it all out thoroughly and sprung for a new EGR valve to boot. After getting it all put together today, I get rewarded for my efforts with a racing engine idle (2K to start then 1K after warm up) followed by a revving engine (between those two RPMs) while in Park. After getting out on the road a mile or more later, I get shuddering from the engine when I am coasting (between accelerating and braking).
What did I do wrong??? I feel like I should take off the new EGR valve and put the old one back on. Is there any deliverance from this minor Hell?
Thanks in advance,
Len
What did I do wrong??? I feel like I should take off the new EGR valve and put the old one back on. Is there any deliverance from this minor Hell?
Thanks in advance,
Len