Last post on Sep 03, 2012 at 8:55 AM
You are in the Maintenance & Repair
What is this discussion about?
Alternative Fuels, Diesel
#30 of 69 Re: Injectors [alcan]
Dec 02, 2005 (6:53 pm)
"watching for swings between low and high voltage output"
Is that a good thing or bad thing?
And, what kind of scan tool? Thanks alcan.
#32 of 69 2000 Ford Windstar lurching
Dec 02, 2005 (8:35 pm)
I have a 2000 Ford Windstar that "lurches" for lack of a better description, while driving it. It is barely noticable but the engine light has come on. Does that sound like a fuel system problem?
#33 of 69 Re: Injectors [noobie1]
Dec 03, 2005 (2:22 am)
Oxygen sensors generate a voltage signal relative to the amount of oxygen in the exhaust stream. The engine control computer uses this signal to fine tune the air/fuel mixture. The voltage should be constantly changing from about 200mV to about 800mV as the computer increases/decreases fuel delivery.
Scan tools display data stream, the actual signals being received by the engine computer from all input sensors, and can range from Actron's $300 CP9135 to Snap-on's $5000+ MT2500.
#34 of 69 Re: 2003 ford expediton xlt 4.6 [swschrad]
Dec 17, 2005 (3:45 pm)
I'm getting the same problem on a '98 Expedition. I used to have a '97 Tahoe & its fuel flter was near the right side just under the passenger door. Is the Expedition filter similarly located?
#35 of 69 Re: Injectors [noobie1]
Dec 23, 2005 (2:07 pm)
just about any OBD-II adapter that allows for a PC or Palm display will allow you to watch the crossings of the oxygen sensors. I built a BR-1 adapter and use a junkpile laptop for the purpose. some scantools with complex LCD screens might allow watching the crossings directly on the tool, Alcan would know more about that grade of tool. you can check directly in the reviews at www.batauto.com to see if they have reviewed any that will do it.
you can also use thin wires slid into the connector to bring the signals out to a general-duty oscilloscope.
#36 of 69 Re: 2003 ford expediton xlt 4.6 [pinevideo]
Dec 23, 2005 (2:12 pm)
the two fords I've owned plus one my sister had a few months all had the fuel filter inside the chassis rail under the drivers side, position varied from ahead of the seat to behind the seat. think like a designer who doesn't want to be sued for a moment. they want the fuel lines and filter protected, but availiable for repairs. so it has to be inside the chassis box someplace and behind the engine. the fuel lines are usually way high next to the body near the top of the chassis. they'll dip down to a fuel filter. look with your hands if you don't see it right away, there's one there.
Jan 06, 2006 (5:34 am)
I have a 1995 hyundai accent that was stored for 4 years. Now with a new battery and fresh fuel there is no fuel getting to the engine. Does anyone know if there is an access pane under the rear seat to get to the fuel pump? Or any other uggestions would be greatly appreciated.
Aug 29, 2006 (3:52 pm)
My truck is seems to be losing power to the fuel system. I have changed the fuel pump and filter 10 months ago (8000kms) so I don't believe that it is that. The fuse is good. I changed the fuel pump relay and that masked the problem for a week or so. I seem to only have the problem when the engine warms up (after 15 mins). It sometime hesitated kinda like the fuel filters plugged and then it just stopped and I can't get it started again. Any Ideas?
Sep 06, 2007 (8:48 pm)
1991 suzuki samurai i just bought it starts good and idles good drive 1/4 or 1/2 1/4 just like its runs out of fuel.but can start it back up but dose the same . changed the fuel felder didnt help