Re: 1999 GMC Jimmy S-15
I had a '94 S-10 Blazer... same thing as your jimmy, different name.<br /><br />Don't know if they fixed it by '99, but the 4.3 has a nasty reputation of the intake gasket leaking around 100k miles or so.<br /><br />Catch it quick, and its no big deal. I noticed I was loosing a little coolant, it was seaping down the front of the intake and down the block, very slow leak. luckily it was the external side that leaked, and no coolant went into the engine.<br /><br />$10 in parts, and 3 hours in the shed and it was fixed. <br /><br />Other than that, They are pretty sollid running trucks. 4x4 went out on me, was just bad vacume hoses. (btw, vacume actuator for 4x4 is located under the battery tray)<br /><br />don't pull 5,000 lbs... they don't like it, but they will do it! (It will do more, but don't ask)<br /><br />Go out and have some fun in the mud!