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Ford F-Series Gasoline Engine Problems

163 messages,  Last post on Oct 15, 2009 at 9:39 PM

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What is this discussion about? Ford F-150, Ford F-250, Ford F-350, Engine, Truck

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#157 of 163 '87 F250 RUNNING BAD by nairb Aug 29, 2009 (12:06 am)
Have an 1987 F250 4x4, 302V8,4sp. trans., reg. cab. The thing runs fine for the  first 1/2hr. or hr. of the day, then it starts running really rough in the low RPM's.  I have to about floor it to take off in 1st gear when I used to take off in 2nd gear.  The RPM's also fluctuate when idilng and sometimes it will just die driving down  the road at which this point I switch to the other tank and that keeps me going  but still runs the same. Checked the timing the plugs, and looked for any bad  vaccuum lines but can't seem to make things any better. Would appreciate any  advice from anyone. Thanks. Replies to this message: notlob (Aug 29, 2009 2:59 am) nairb (Aug 29, 2009 7:19 am) mike9408 (Aug 29, 2009 4:57 am) nairb (Aug 29, 2009 7:23 am)
#158 of 163 Re: '87 F250 RUNNING BAD [nairb] by notlob Aug 29, 2009 (2:59 am)
Replying to: nairb (Aug 29, 2009 12:06 am) sounds like you could be having some vapor lock problems. Replies to this message: nairb (Aug 29, 2009 7:19 am)
#159 of 163 Re: '87 F250 RUNNING BAD [nairb] by mike9408 Aug 29, 2009 (4:57 am)
Replying to: nairb (Aug 29, 2009 12:06 am) If this happened suddenly........check to see if you picked up a bad load of fuel. Does it appear to be using to much fuel (black smoke at tail pipe) Check the Air Filter, replace if necessary. CHECK/REPLACE THE FRAME FUEL FILTER, this is more than likely the problem. If this does not fix it, check the vacuum line to the fuel back pressure regulator and the pressure regulator. Replies to this message: nairb (Aug 29, 2009 7:23 am)
#160 of 163 Re: '87 F250 RUNNING BAD [notlob] by nairb Aug 29, 2009 (7:19 am)
Replying to: notlob (Aug 29, 2009 2:59 am) What do you do about vapor lock?
#161 of 163 Re: '87 F250 RUNNING BAD [mike9408] by nairb Aug 29, 2009 (7:23 am)
Replying to: mike9408 (Aug 29, 2009 4:57 am) It's been doing this for about a month and a half so it's not the fuel. Checked the air filter and its fine. And according to my Haynes manual, F250's w/EFI have non- servicable or replacable fuel filters. Thats what I was thinking the problem could be because I do run both my tanks down to fumes quite often.
#162 of 163 02 f-250 fuel problems? by ahandy Sep 21, 2009 (1:57 pm)
My truck has 142,000 miles on it and recently the truck died for no reason. It happened again about a month later. I replaced the fuel filter and didn't solve the problem. The pump turns on and speeds up as rpms increase. Sometimes it won't stay running, other times it runs like there is no problem. I am so hesitant to take it to the dealership who has misled me in the past. (catastrophic electrical failure) Plus i am hoping to do the repair myself. By the way no error codes
#163 of 163 F-250 RADIATOR PROBLEM? by nairb Oct 15, 2009 (9:39 pm)
Went to check my antifreeze in my truck to see what it was good to (protection  below zero), and when I pulled the gauge out of the radiator neck, it had yellowish  oil-like residue all over it. I know when you blow a head gasket, the oil on the dip-  stick might have H2o/antifreeze on it. Is this possibly the same problem? Any  help is greatly appreciated.Thanks.

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