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Ford Explorer Engine and Diagnostics Problems

44 messages,  Last post on Aug 16, 2009 at 7:41 AM

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#35 of 44 1999 Explorer V8 5.0L engine tapping noise by rmncoknme Sep 21, 2008 (3:16 pm)
My Explorer now has ~171,000 miles on it, and so far has been a good car, I think. Anyway, it has a problem with the engine, a sound that is a sort of tapping from the area of cylinder 1 (maybe 2 or 3). When I first start it, it is noticeable at idle, then once the motor is warm it is only present when accelerating (apply any gas and the tapping comes back). At highway speed, or any other, tapping is only when on the gas. Sound is definately engine related, as it is there when in Park and is proportional to engine RPM not vehicle speed. I don't feel any issue with acceleration, but harder I accelerate the higher volume the tapping. I don't drive it much since a couple of years ago, maybe 10,000 miles per year mostly during winter, but I do usually take it on some errands every couple of weeks. Replies to this message: clintoris (Dec 11, 2008 7:02 am) rmncoknme (Aug 16, 2009 7:41 am)
#36 of 44 2002 Ford Exp-stalling by cpickford Oct 26, 2008 (8:32 am)
I just bought a new battery thinking maybe that was the problem-but no it was not the issue. When I am usually at a stop light or idle the Explorer seems to have a click noise just before the speed in the motor changes to a lower idle-then stalls. Please has anyone experienced this problem-would you be so kind as to help me out with my problem Replies to this message: cpickford (Oct 29, 2008 8:06 am)
#38 of 44 2002 Ford Explorer-stalling issues by cpickford Oct 28, 2008 (5:57 am)
Hey there! Well after doing a lot of reading and just by knowing how much I drive my truck, I decided to clean out the intake. I just came back from good old Canadian Tire with a can of Throttle Body Cleanner. I did notice some gunk in the intake before-but never really thought anything about it at the time. Wish me luck-I will let yous know the results.
#39 of 44 Re: 2002 Ford Exp-stalling [cpickford] by cpickford Oct 29, 2008 (8:06 am)
Replying to: cpickford (Oct 26, 2008 8:32 am) Well I brought it to Midas and it needs new plugs and wires and a Thottle Intake Cleaning. The appointment for the truck is Friday-I will post how the Truck runs once the work is finished-Keeping my fingers crossed.
#40 of 44 Re: 1999 Explorer V8 5.0L engine tapping noise [rmncoknme] by clintoris Dec 11, 2008 (7:02 am)
Replying to: rmncoknme (Sep 21, 2008 3:16 pm) I'll bet youre trouble is either a cracked exhaust manifold or a manifold gasket. either problem is an easy fix if you're a do it yourselfer.... although the manifold will not be cheap. You'd be better to buy some shorty headers.. you'll gain performance and save money. That problem is common to Windsor motors (289, 302, 351) all throughout their life cycle.   it's not a major problem... shouldn't damage anything. Replies to this message: rmncoknme (Aug 16, 2009 7:41 am)
#41 of 44 97 explorer erratic idle by heat55 Jan 15, 2009 (8:05 pm)
truck idles high(2k+)on start up then idles low and rough.just like vacume leak. replaced upper and lower intake gaskets,egr,pcv,tps,maf,iac,cleaned grounds.etc.i have no results with my motis($14000)or otc($7000)scan tools.acts like internal vacume leak but external gauge reads steady 19". any ideas would be great. thanks..
#42 of 44 Re: obdII port not working [ssobehtami] by arizonatrooper Apr 10, 2009 (2:42 pm)
Replying to: ssobehtami (Sep 09, 2008 3:14 pm)  I'm now having the same problem with my '01 Sport Trac.  OBD II has no power to it (pin 16)  Did anyone find out what was wrong and how to repair it?   Tkx bcooper88cox.net
#43 of 44 Im just a kid by itzbrock Aug 13, 2009 (2:39 pm)
I recently bought a used 2001 Ford explorer sport. For the first month or so its been doing great, and only had a few minor problems that were fixed. About a week or so ago ive been having some problems with my transmission. For example.   I would start it up fine, take it down the road and after about a min or so of driving it wouldnt go anymore. You could press the gas and rev it up all you wanted, but it wouldnt go anywhere. My dad and i really wouldnt like to buy a new/used transmission, and would love to know if anyone has any ideas about our problem.   fyi, we checked the transmission fluid and it was actually above what was needed.
#44 of 44 Re: 1999 Explorer V8 5.0L engine tapping noise [clintoris] by rmncoknme Aug 16, 2009 (7:41 am)
Replying to: clintoris (Dec 11, 2008 7:02 am) I'm finally getting around to fixing this just now. Question; I can easily get at all the manifold to engine head bolts by removing the wheel and plastic wind deflector, but I cannot get to the inside exhaust pipe bolt. The one of two that hold the exhaust pipe to the manifold. My question is, if I remove the bolt I can get at, will the bracket that holds the exhaust pipe to the manifold allow the exhaust pipe to drop enough that I can get at the second bolt?

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