BostonETC97 Posted November 20, 2010 Report Share Posted November 20, 2010 A couple weeks ago I posted on here about my warm-start misfire. I thought I resolved it with a bottle of Marvel Mystery Oil, but it still wasn't right. Tonight I finally gave in, bought a bottle of throttle-body cleaner and MAF cleaner, and rolled up my sleeves! I can't even begin to describe the donkey-show on the back-side of my throttle plate! I took a close look before going nuts with the spray cleaner, and I can only describe it as a vile black tar, that had a moist outer layer, and a rock-hard lower-layer that stuck to every surface on the throttle blade, body, and inner-intake. It took 20 minutes of soak-wipe-brush-soak cycles just to get it off. It almost felt like tar. After using an entire bottle of TB cleaner, and 5 or so shop-rags (that turned totally BLACK with goop), I deemed it clean. Unreal how much tar-goop-crud was in there. While I had the mass air-flow sensor out, I cleaned that up as best I could with the MAF cleaner spray. It didn't look bad, but it looked much cleaner than when I started. While I had the intake bellows/tubes/filter-housing out, I got a clear look at the shift-switch, and realized why I had a random no-start! The heater hose clamp was loose, and it would leak right onto the harness and connector for the gear/neutral switch! The entire switch, harness, and connector was SOAKED in dex-cool. I took some brake cleaner, cleaned it all up, and most importantly, tightened up the hose-clamps. Hopefully that's the end of my random no-start issue! (I realized that the car *would* start if I shifted from park to neutral a few times! Makes perfect sense now!) I buttoned everything back up, disconnected and re-connected the battery to reset the PCM, and fired her up. I can't even describe how much smoother idle is, how responsive the pedal now feels. It's like driving a different car. I suppose I on a Friday night I should be at a bar or club or somewhere having fun, but this was the best hour I've spent under the hood in a while! I'll report the results in the next few days to see if I've *really* fixed the misfire for good! Hope everybody has a safe and great weekend! Link to comment Share on other sites More sharing options...
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