Recent content by Dave Wilson

I liked the suggestion to pressure test the cooling system. I couldn't find a pressure tester at an auto parts store this morning, so I made my own. I hacksawed a Schrader valve off an inner tube, and zip tied it into a short piece of tubing I put the tubing on the overflow connector of the...

I took a 20 mile drive on the interstate after work today, driving 70-80 mph, with one eye on the rear view mirror the whole time. No smoke at all. Engine temperature stayed normal. No burning smell. When I got back everything was normal. Now I'm really confused. Because there was definitely a...

Hey, thanks for all the suggestions. They help. I went out after work today to inspect the engine. I didn't see anything obviously leaking. I sprayed Gunk on the engine and hosed it off to get it clean so I can work on it. I checked the oil again, and it is definitely right where it should be...

I just checked, and it's the 0630 head. I also checked the oil, and it's right at the full mark, same as when I topped it off yesterday before the trip. I guess I might have been mistaken in the dark and the stress of the billowing white smoke. The oil looks good; it's at 4500 miles. The coolant...

New guy on the forum. I searched, but didn't find an answer. I'm on my third XJ in ten years, so I do have some experience with them. I have a 1999 4.0L XJ with 105K miles. Runs fine. Last night I took it to bring a boat home for a friend. No problems driving 90 miles there. He buys the boat...