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Car Forum / Ford / Ford Explorer / July 2005'91 Explorer XLT Stalling Out
The past 2 years that I have had my Explorer I have noticed that in the summer it is stalling out. Well yesterday things got really bad with it, In order to keep it running I have to leave my foot on the gas and place it in neutral sometimes. I checked my vacuum lines and found 1 line that was torn up from wear and tear, and was promptly fixed. Unfortunately that did not solve the problem as I had hoped. I am hearing a loud hissing noise as if there is a vacuum leak but I cannot find it, as all the lines that are visible are in good condition. Are there any lines that are hidden that are accessible if you know where they are at? How hard is it to change out the spark plugs w/o having to tear off half of the engine? Thanks in advance for your help. ~Dan It's probably the IAC valve. A common problem. Easy to remove and clean. If it does not work after cleaning. maybe time for a new one. Usually the IAC is mounted on the intake manifold or on the throttle body. It looks similiar to this: http://lightning.prohosting.com/~v8mate/auiac2.jpg Sorry if that link is blocked. Try this pic and scroll to the bottom. http://lightning.prohosting.com/~v8mate/auiac.html > Sorry if that link is blocked. Try this pic and scroll to the bottom. > http://lightning.prohosting.com/~v8mate/auiac.html That wouldn't happen to be similar to the Mass airflow sensor would it? >> Sorry if that link is blocked. Try this pic and scroll to the bottom. >> http://lightning.prohosting.com/~v8mate/auiac.html >> > That wouldn't happen to be similar to the Mass airflow sensor would it? Disregard this one :) >> Sorry if that link is blocked. Try this pic and scroll to the bottom. >> http://lightning.prohosting.com/~v8mate/auiac.html >> > That wouldn't happen to be similar to the Mass airflow sensor would it? Okay, I pulled the IAC out, cleaned it, checked the resistance and it was at 9Ω which is within spec. I did notice however that when I blew through it with the the shaft exposed on the end that it did completely block off air when I tried to blow through it, and when I reattached the other half, it was open enough to where I could pass air through it. The good thing is that the loud hissing noise is not as pronounced as before as it seems to be somewhat intermittent. I am not sure if taking brake cleaner or something of that sort will more thoroughly clean it, as it was hard to get inside it due to the shaft. >>> Sorry if that link is blocked. Try this pic and scroll to the bottom. >>> http://lightning.prohosting.com/~v8mate/auiac.html [quoted text clipped - 11 lines] > brake cleaner or something of that sort will more thoroughly clean it, > as it was hard to get inside it due to the shaft. I also took the truck out for a spin both with AC on and OFF, and it seemed to run a little better, but not noticible enough to say it's fixed. > The past 2 years that I have had my Explorer I have noticed that in the > summer it is stalling out. Well yesterday things got really bad with it, [quoted text clipped - 16 lines] > > ~Dan Dan, I just had a similar problem on my '92. It didn't stall but idled rough. First make sure that on the little manifold that is at the left rear of the engine that all the ports have either a vacuum line attached or a cap to seal off a port that is not being used. If all that is OK pull out the thicker vacuum line that goes to the power brake booster. That is the round can that is mounted on the firewall.. Pull that big hose out of the booster and close of the end with your hand. See if that makes a difference. What happened to me was that the grommet on the booster had deteriorated and leaked. Replacement can be got at local parts store. Charlie >>The past 2 years that I have had my Explorer I have noticed that in the >>summer it is stalling out. Well yesterday things got really bad with it, [quoted text clipped - 29 lines] > > Charlie Good suggestion, I will check it out. The other thing that I noticed was that there was what looked like a cap to a vacuum line on the ground, I put it to the side as I still cannot find where it came from, as it probably tumbled off somewhere. The loose cap you found on the floor probably is from the vacuum tree near the back of the intake manifold. This cap in infamous for blowing off if there is any type of small backfire. Look for the tree, you will find an uncovered vacuum line, and hopefully your hissing noise. > >>The past 2 years that I have had my Explorer I have noticed that in the > >>summer it is stalling out. Well yesterday things got really bad with it, [quoted text clipped - 34 lines] > put it to the side as I still cannot find where it came from, as it > probably tumbled off somewhere. Well I do have all the connections taken care of, unfortunately this cap belongs somewhere else :| > The loose cap you found on the floor probably is from the vacuum tree near > the back of the intake manifold. This cap in infamous for blowing off if [quoted text clipped - 60 lines] >>put it to the side as I still cannot find where it came from, as it >>probably tumbled off somewhere. I found that the easiest way was to remove the passenger side inner fender (plastic) to get to the rear plug. All the rest are relatively easy. John Normile (Snip) >Thanks in advance for your help. > >~Dan > I found that the easiest way was to remove the passenger side inner > fender (plastic) to get to the rear plug. All the rest are [quoted text clipped - 7 lines] >> >>~Dan Rear Plug on the Left side? Do you have an approximate location or a par t that I could reference? Dan In your post you asked about possible problems changing spark plugs. My reply was in refreence to this question. John >> I found that the easiest way was to remove the passenger side inner >> fender (plastic) to get to the rear plug. All the rest are [quoted text clipped - 4 lines] >Rear Plug on the Left side? Do you have an approximate location or a par >t that I could reference? > Dan > In your post you asked about possible problems changing spark plugs. [quoted text clipped - 9 lines] >>Rear Plug on the Left side? Do you have an approximate location or a par >>t that I could reference? When you did this, did you have A/C? >> Dan >> In your post you asked about possible problems changing spark plugs. [quoted text clipped - 11 lines] >> >When you did this, did you have A/C? YES
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