Last post on Nov 20, 2013 at 9:43 AM
You are in the Ford F-Series
What is this discussion about?
Ford F-150, Ford F-250, Ford F-350, Engine, Truck
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#201 of 253 Re: 95 f250 4x4 [jts46]
Feb 20, 2010 (2:54 pm)
I would check the fuel pump discharge pressure. Particularly when it is chug(ing) (?) if you can. I had the same type of problem with my 91 f-150, found a bad connection in the fuel tank where someone else had tried to jury rig a connection. Most of the time would run but poorly to sometimes almost good.
Please try to include the engine type and use complete descriptive sentences. Let me know what you find but it does sound like the fuel pump.
#202 of 253 Re: 95 f250 4x4 [mike9408]
Feb 20, 2010 (3:50 pm)
this is a 5.8liter fuel inject 4speed stick. for a 95 it all looks org underneath the vech
am i looking for hoses or wires or both for this connection problem?
#203 of 253 Re: 95 f250 4x4 [jts46]
Feb 20, 2010 (5:16 pm)
The Fuel pump for your truck is in your fuel tank, it will be necessary to drop your fuel tank to gain access to the pump. However, I suggest that first you check the fuel pump discharge pressure. There is a fuel pressure test fitting in the engine compartment, probably on the back side of the engine usually just behind the intake manifold. On my truck (91 F-150 4.9L I6) it is chrome with a connector that looks like a schrader valve (inner tube fill valve). You will need the proper gage with the proper fitting to screw it onto the fitting of the truck. This gage is available at about any auto parts house. Be sure to follow all instructions that are included. I would also purchase a Chilton repair Manual (Aprox. $20.00) which will be of great value during all minor repairs like this one. If they don't have Chilton, check for Haynes Manual, should be the sme price. I have both. Good investment.
#204 of 253 Re: 95 f250 4x4 [mike9408]
Feb 21, 2010 (6:55 pm)
thanks i'll be looking tomorrow for this hookup
#205 of 253 Re: F-350 (gas) frequent fuel pump failure [tador]
Mar 03, 2010 (3:59 pm)
have a 1999 f-250 with hesitation problems at full throttle, sounds similar to you problems
#206 of 253 1999 f-250 hesitation at WOT
Mar 03, 2010 (4:10 pm)
need some advice, change fuel pump, fuel filter mas ,plugs, air filter, ran injecter cleaner several tanks in a row, still same problem of hesitating at wot, no dtc's but scanner found that truck stays in closed loop fuel cycle and advice?
#207 of 253 Re: 1999 f-250 hesitation at WOT [kjlambert]
Mar 03, 2010 (5:23 pm)
That is odd, particularly after changing all the parts and it shows no codes. Could be a bad connection somewhere in the fuel system loop. You could always just disconnect the battery (s) for about 15 minutes to reset the computers. This means the computers will have to re-evaluate the system. You will be best off to take the truck for a drive (preferably 55 mph) for 15 or 20 minutes. During the evaluation period the truck may experience some drive ability troubles (hesitations, etc). But should clear up after it has measured all of the variables and made the necessary adjustments. After this has been done it should run ok. You might also check the fuel pressure at the engine. Not sure what your pressure should be but mine is 40 to 70 psi. Let me know how you fair. Mike
#208 of 253 Re: Will a 2003 4.2 V6 out of a f-150 fit in a 1997 f-150? [hubbamc]
Mar 04, 2010 (1:15 pm)
Yes that motor will work for your truck. I just helped a friend with a 98 f-150 4.2 5spd, and he found one out of a 2001 f-150 auto for 250 bucks and we had to remove it. But the only thing that was different was the O2 sensors on the manifolds, the coil pack, and the intake. So we changed the O2 sensors with his and the coil pack, and decided that the intake would work and ended up just plugging the old harness in the new motor. But if you're going to chage it I would change everything that is different. but we used the newer sensor that we could and the truck is running great. I hope that helps you.
#209 of 253 Re: F-350 (gas) frequent fuel pump failure [kjlambert]
Mar 05, 2010 (6:14 am)
I have a 2005 F150 lariat and they told me my hesitation, and "Surging" was due to a software update I needed, paid for and got it installed but it only seemed better for about a month, so I gave up!! Kimberely
#210 of 253 Re: F-350 (gas) frequent fuel pump failure [kimberely]
Mar 05, 2010 (8:49 am)
Kimberly, try disconnection the negative cable of your battery, leave it disconnected for 15 minutes to 20 minutes. This will re-set your computer. After doing this, drive it at 55 mph for 10 to 15 minutes (keep as steady a speed as you can.) This should fix the problem if it is your computer. Other than that I would check the timing, generally the timing is around 10deg btdc. What engine do you have?