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Car Forum / Ford / Ford Explorer / November 2006Explorer 98' engine Pinging
Hi guys, I own an Explorer with 4.0 OVH or "pushrod engine" When I bought it, even up hill under load engine was very quiet. Recently I notice under same conditions , pinging sound start to come out from the engine. I understand it's not good if it happened for prolong time but with distributor less model , What to do to minimize or get rid of it? I switched fuel with Texaco, change plugs and cables but sound still exised. What else do I need to do to improve? Please help any ideas will be appreciated Dosio you can get the pcm reprogrammed @ a dealer . alot of times the timing is readjusted when reprogrammed >Hi guys, > [quoted text clipped - 12 lines] > >Dosio Just move up one octane grade of gasoline, from regular to the mid-grade, for example. That is why there are different grades, after all. Brands won't make a difference. =Vic= Bear Gap, PA > Hi guys, > [quoted text clipped - 12 lines] > > Dosio I had the same problem with my '92, same engine. There was a jumper on that model that could be removed to retard the timing. It hurt the gas milage and performance so much I put it back and ran premium gas from then on. There is a lot of discussion about this if you do a Google search of news groups. I ran the premium gas for a number of years until I sold the vehicle and moved up to a '99. >Just move up one octane grade of gasoline, from regular to the mid-grade, >for example. That is why there are different grades, after all. Brands won't [quoted text clipped - 18 lines] >> >> Dosio > Hi guys, > [quoted text clipped - 12 lines] > > Dosio Try cleaning your MAF sensor. Very easy to do and almost free. Might very well fix it. Google for the procedure. You'll need some electronic switch cleaner and a security type torx bit. > Hi guys, > [quoted text clipped - 12 lines] > > Dosio Collectively, you've recieved the best advice possible. I have a 1998 XLT pushrod and have had similar problems over the later years, mostly in Summer when the temperature in NC/SC USA where I live is 90 Fahrenheit or hotter. For what it's worth, my XLT runs very well on Royal Dutch Pet. (Shell) fuels. That's all I use. 1. Clean MAF with solvent. and/or 2. Upgrade to 89 or 92 octane fuel. and/or 3. Replace MAF. Thank you all , I'll try all suggestions out and post the outcomes Dosio > Hi guys, > [quoted text clipped - 12 lines] > > Dosio Don't forget to check the intake for vacuum leaks( very common) Might be a lean ping Spray carb or t-body cleaner @ the intake gasket area and EGR tube where it goes into intake and listen for rpm changing Or use a unlit propane torts BE CAREFUL<, don't set engine on fire > Thank you all , I'll try all suggestions out and post the outcomes > Dosio [quoted text clipped - 14 lines] > > > > Dosio If none of the above worked, try using a product called Sea Foam. It is used like an injector cleaner product, but you can pour into your engine thru the oil filler. The recommended amount is to use 1 pint (the entire bottle). Also try pouring another bottle into your gas tank. I tried this on my '98 V8 Explorer, which was making a ticking noise, and was producing a non-stop Check Engine Light, and agfter using Sea Foam, everything was fixed, including the CEL! Here's their website: http://www.seafoamsales.com >Don't forget to check the intake for vacuum leaks( very common) > [quoted text clipped - 11 lines] >> > >> > Dosio I've heard , to check intake vacuum leak with carburetor cleaner, is this true? Dosio > Don't forget to check the intake for vacuum leaks( very common) > [quoted text clipped - 27 lines] >> > >> > Dosio My 94 had pinging problems that were treated with all the remedies mentioned so far. Finally, I replaced the fuel pressure regulator. Seems the old one only worked under normal, flatland loads. Get the model by GP Sorenson Co.; the others do not physically fit like they are supposed to. About $75.00 @ Autozone. Don't even ask what Ford wants for one! > Hi guys, > [quoted text clipped - 12 lines] > > Dosio |
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