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Car Forum / Ford / Ford Explorer / October 20071998 Mountaineer V6 stalls after start
I bought this car new and it has only about 35,000 miles on it. It starts instantly but for the last couple of weeks it will stall immediatly after starting. It restarts instantly and is runs perfectly after that. Problem may occur maybe once more later in the day. Air cleaner was replaced 5000 miles ago, plugs are original. Any suggestions? Thanks! Ken Does it stay going if you step on the gas after starting? Could be the IAC - clean or replace: http://www.ford-trucks.com/article/idx/0/170/article/Ford_Explorer_IAC_Fix.html  SignatureAllan Williams >I bought this car new and it has only about 35,000 miles on it. It starts >instantly but for the last couple of weeks it will stall immediatly after [quoted text clipped - 3 lines] > > Ken Thanks for the reply. Can't say if it keeps running if I hit the gas because I never tried--as soon as it stalled I turned the key and it instantly(seem like not even one crank) restarts after the stall and runs fine with foot off the gas. I'll check and follow the steps in the link you provided--that's a great link by the way. Ken > Does it stay going if you step on the gas after starting? > > Could be the IAC - clean or replace: > > http://www.ford-trucks.com/article/idx/0/170/article/Ford_Explorer_IAC_Fix.html >I bought this car new and it has only about 35,000 miles on it. It starts >instantly but for the last couple of weeks it will stall immediatly after [quoted text clipped - 3 lines] > > Ken wow, driven ten miles a day for ten years.....Truck sits a lot no doubt. Hoses age, water condenses, unexersised linkages stiffen i suppose....What ever it prooves to be, it is certainly worth the trouble fixing. Good luck with your low milage truck- I'm jealous! Followed the procedures on the link--IAC valve tests good electrically, connector supplying 12 volts. Took valve off--pretty clean inside but used q-tip and solvent to clean off anyway and put valve back on. Checked air tubes etc. (whatever I could get into anyway)--no obstructions. Checked any tightened anything that could be tightened--no leaks that I could detect. Took the PCV valve out (what a pain that was!)--rattles nicely so I cleaned it with solvent and put it back. No change for better or worse. Just for the heck of it I threw a can of fuel system cleaner in the gas tank. I'll continue my testing--when I get to the point wher I can't live with the first start stall/restart runs perfectly, I'll consider taking it in to be looked at. > I bought this car new and it has only about 35,000 miles on it. It > starts instantly but for the last couple of weeks it will stall [quoted text clipped - 4 lines] > > Ken Your symptoms don't exactly match the IAC issue, but it can't hurt. If this is the SOHC engine (and I assume it is) then other things to look at would include: - intake manfold gasket leaks (many have had complete failure of both upper and lower gaskets - mine did but it basically didn't run at all until it was fixed) - MAF sensor (google explorer MAF for a cleaning procedure) You may also want to verify you've got all the recalls / extended warranties on the SOHC which include (from memory) - throttle body, timing chain tensioners, upper intake gaskets, cruise control switch. SignatureAllan Williams > Followed the procedures on the link--IAC valve tests good electrically, > connector supplying 12 volts. Took valve off--pretty clean inside but used [quoted text clipped - 16 lines] >> >> Ken Problem persisted. Took IAC valve out again. Really cleaned inside this time--blasted with solvent, allowed to soak, moved the spring and cup/retainer back and forth. Then using a tiny screwdriver and very fine sandpaper cleaned the two contact pins in the electrical connector. Next morning, car started normally. I went out, made several stops, started normally each time. Looks encouraging. > Your symptoms don't exactly match the IAC issue, but it can't hurt. If this > is the SOHC engine (and I assume it is) then other things to look at would [quoted text clipped - 7 lines] > on the SOHC which include (from memory) - throttle body, timing chain > tensioners, upper intake gaskets, cruise control switch. I had this problem a number of times with my '99. I could clean the valve and get good results, usually for not very long. I finally started replacing the valve when the problem occurred. The new ones seemed to last a lot longer before giving a problem again. >Problem persisted. Took IAC valve out again. Really cleaned inside >this time--blasted with solvent, allowed to soak, moved the spring and [quoted text clipped - 14 lines] >> on the SOHC which include (from memory) - throttle body, timing chain >> tensioners, upper intake gaskets, cruise control switch. Thanks. How much does the valve cost? > I had this problem a number of times with my '99. I could clean the > valve and get good results, usually for not very long. I finally > started replacing the valve when the problem occurred. The new ones > seemed to last a lot longer before giving a problem again. >Thanks. How much does the valve cost? > >> I had this problem a number of times with my '99. I could clean the >> valve and get good results, usually for not very long. I finally >> started replacing the valve when the problem occurred. The new ones >> seemed to last a lot longer before giving a problem again. It's been a number of years since I sold the '99 and I don't remember for certain. I think I bought the valve at Autozone for around $40.
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