Well, I went ahead and did the DP last night then changed both filters at the end... the results are a mixed bag...

1) When I started the car this morning the idle was much smoother and the car was less 'clanky' when cold - something that was a small problem before...

2) The car runs much smoother at lower speeds (up to 40mph) - it accelerates smoother and it seems to shift smoother too - just initial impressions...

HOWEVER, the power seems to be lacking above 40mph - it seems that I've lost the nice boost starting at 2100 rpm I was used to feeling... at that rpm I'm used to feeling the turbo kick in and propell the car quickly to higher speeds - now it takes its time to get up to 60mph.

It acts like it did before I cleaned the ALDA lines - maybe the switchover valve is toast now, not sure. I plan on putting a boost gauge on it tonight to give it another check... not panicking yet (I hope)...

Also, when chaning the fuel filters I wasn't sure where to put the small rubber "O" ring - I put it in the only logical place on the threaded stem that holds the spin-on filter in place though I was surprised that there wasn't one already there...

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1987 Mercedes 300SDL; SOLD
1985 Mercedes 300D; SOLD
2006 Honda Pilot - wife's ride; 122K;
1995 Toyota Land Cruiser - 3X locked; 182K