- Aug 30, 2005
- 51
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me and a friend were detailing the engine on my 99 gt and he started just blasting the whole engine with the water (higher pressure wand from car wash) after that was when it started acting really wierd. at idle my tach jumps from ~500 to about ~700 at random and very spastically, at WOT it gets super shaky and surges really bad. i had a problem with surging before but really only around 10002000 and only at certain speeds it seemed. any ideas for me?