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Originally Posted by kkrover
My 95 has recently has all coolant hoses and t-stat replaced b/c of air in the heater core. Air bubbles came back and turns out the expansion tank cap was leaking, so replaced that. The bubbles have come right back, but before i go any further there are other issues that I am beginnng to wonder if they are related.
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Did your mechanic suggest you get new hoses because of air bubbles in the heater core? If so i would find a new mechanic. Air bubbles (not an air lock) are usually caused by a leaking head gasket and the expansion cap failing could be your system overpressurized beyond the 15lb limit of the cap.
How recently were the hoses replaced? Like Okierover said, (how about those Bronco's Okie!
) your smell could be coolant that spilled in the valley pan and your leak could be something as simple as a leaking hose clamp. All this is pretty tough to diagnose without being able to see it.
My suggestion is to take your rig into another mechanic - doesn't have to be a rover mechanic - get a second opinion and do a hydrocarbon test. Basically they use a tester that will turn a different color if exhaust gases are present. Its not expesive and this will rule out the headgasket.
