Question about Ford Explorer
Sounds like a lean fuel condition. If fuel pressure is good, I would suspect a dirty or faulty mass airflow sensor. Try disconnecting the sensor in the air intake tube near the air filter. If the problem goes away, replace the sensor.
Posted on Nov 16, 2014
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Posted on Jan 02, 2017
SOURCE: surging while driving
This is a notorious problem with the Windstars. There are oodles of ground straps in them. Make sure they are all clean and tight. ESPECIALLY THE STARTER GROUND STRAP. If it's loose, the car may just die when you turn up into a driveway or parking lot or just go over a bump. If you notice the "Check Engine" light comes on momentarily, at the time of the surge or the engine kills completely, it's DEFINITELY the starter ground strap! My engine used to kill at odd times -- even when on the freeway going at 75!-- Then we'd go over another bump and SURGE_O_RAMA, the engine's running again or I'd restart it and it would be fine for a while. What's happening is the loose ground strap loses it's connection when you go over a bump in the road. The next bump jogs it back into the connected mode, albeit tenuous at best. All of the computer techs couldn't find the problem. It took a 70-year old seat-of-the-pants mechanic to make the SIMPLE fix. It took so long to find the common-sense mechanic, however, that the down-shot of all of the surging tanked my tranny, which I had to have rebuilt! AND then, after I drove away from the 5-star AAA BBB "transmissing" shop, I found that THEY HAD NOT TIGHTENED ALL OF THE GROUND STRAPS! I took it back. They had no knowledge of ALL 9(?) ground straps and had to take it to THEIR mechanic who tightened them ALL down! It's been 5 years since then and I haven't had another problem with it. RULE OF THUMB: EVERY TIME YOU HAVE THE VAN SERVICED have them tighten-down ALL of the ground straps! If your mechanic doesn't know what you are talking about, go find a new mechanic. Generally, the AAA "Top Shops" are your best bet. They fix things right the FIRST time. I still haven't found a manual that has all of the ground straps listed, by the way.
Posted on Oct 09, 2008
Have you checked the ignition timing? Maybe you need to turn the distributor to the left or right if you don't have the timing light gun
Posted on Nov 11, 2008
Best do a fuel pressure test. Should have chg. fuel filter from the get go. The only other filter is on the end of the fuel pump in tank. Bad gas and dirty gas will plug up fuel filter, hense burn pump up.
Posted on Apr 11, 2009
Have you changed the fuel pump yet?I had the same exact problem.I replaced my fuel pump with an AUTOZONE PIECE OF JUNK fuel pump.That pump lasted almost 2 days.The second day i had it the truck didnt want to start but it did and it ran like ****,and when i put it in gear it ran as long as I didnt touch that gas pedal.You could go get a fuel pressure test or just replace it,your call.You might want to check your filter too but im sure its the pump.Good luck
Posted on Apr 27, 2009
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