Last post on Oct 26, 2013 at 4:56 AM
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#3350 of 6400 1996 Explorer O/D problems; K & N not advised
Feb 20, 2005 (5:52 pm)
The Overdrive O/D light no longer lights up before starting, and is inoperable when the shift button is pressed (it will not downshift to third gear) but does shift from 3 to 4 under normal operation.
Is this the beginning of more woes?
Just replaced the mass air flow sensor-$287.00 due to K & N filter oil element fouling the sensor. K & N does not respond to my message, and my mechanic tells me there is a FORD bulletin that does not advise K & N for this reason.
Your reply much appreciated!
#3351 of 6400 Re: 1996 Explorer O/D problems; K & N not advised [bmr4]
by Stever@Edmunds HOST
Feb 20, 2005 (7:51 pm)
A few models come with K&N's installed, so it'd be interesting to see the Ford bulletin. Try the K&N Air Filters, bolt-on power? for more comments.
#3352 of 6400 Re: help 91 explorer loss of power erratic idle [erics2]
Feb 21, 2005 (9:31 am)
You may have a vacume leak driver side valve cover vacume tree also check hoses that come off there they may be broke ,some are little plastic things you can replace them with rubber. i had this problem plus i had a leaking modulator valve on the transmission letting trans oil to be sucked to this vacume tree making for slick a faulty hoses it kinda eats the rubber. Now this is the fun part every one will tell you that 91's do not have a modulator valve on the transmision but the auto zone and my mech. were wrong. so just check to see if these hoses are oily and spongy then if they are folow the one going to the trany if u have one have a mechanic replace it u have remove catalitic converter and it was a job. plus catalitic converter was pluged probably due to buning trans fuid. by the way if u have this problem check trans fluid level or u will get stuck somewere because your truck will not go in gear. good luck hope this helps
#3353 of 6400 Re: help 91 explorer loss of power erratic idle [subgun]
Feb 21, 2005 (10:06 am)
Thanks for the help, all of my vacuume hoses seem to be in order. I am also driving a 5 speed. Im not sure the tranny fluid is an issue. This has gotten to the point that I cant move it 50 feet without it running like crap and stalling. Again I wonder what the deal is with the black soot- This is something that has become progressively worse. It started on the coldest day this winter and went away for a few weeks. Now it has gotten much worse?
#3354 of 6400 Spooling noise like a turbo
Feb 21, 2005 (5:08 pm)
Hey, I own a 2004 Ford Explorer, and every time it hits about 3000rpm it will make a spooling noise like a turbo charger. The noise comes from the the passanger side which is also the side the intake is on under the hood.
I'm able to hear it with the AC on or off.
Any idea what this is?
#3355 of 6400 Re: Explorer, stalling and idle problem [jan-aruba]
Feb 21, 2005 (5:54 pm)
Does it happen at all temperatures or only when cold?
#3356 of 6400 Re: help 91 explorer loss of power erratic idle [erics2]
Feb 21, 2005 (6:01 pm)
If it's mainly occurring with the engine cold I would have a look at intake gaskets. Spray soapy water around the gaskets and the throttle body gaskets too and see if there is change or you see soap bubbles. Black smoke could be the PCm trying to overcompensate for the lean condition by dumping fuel. Mass air flow is giving it one reading, but the O2 sensors are a lot leaner.
#3357 of 6400 Re: 1996 Explorer O/D problems; K & N not advised [bmr4]
Feb 21, 2005 (6:05 pm)
O/D problem sounds like an electrical problem within the O/D switch circuit. If it's shifting into 4 OK, then it's not likely a mechanical problem.
I've heard a lot of things about oiled air filters in MAF-controlled cars, most of it bad.
#3358 of 6400 Re: 1996 Explorer O/D problems; K & N not advised [wijoco]
Feb 21, 2005 (6:40 pm)
Thanks for your reply. I will keep an eye on it, and my teenagers easy on the gas!
#3359 of 6400 1992 Explorer transmission or brake problem?
Feb 22, 2005 (1:53 pm)
1992 Explorer Eddie Bauer 4WD, automatic transmission. This just started Friday, car is in park, reverse out of parking spot, put in drive and it will not drive forward. After going back to reverse and back to drive a few times it drives normally. Also noticed that it will not creep forward after applying the brakes and letting them up. I have checked the transmission fluid and that is fine. It almost feels like the brake is on one front wheel. Any ideas? Thanks for your help.