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Dec 9, 2012 | 01:59 AM

Robert Ceplina

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robertcjr

Have a 92 F150 XLT, only 86,000mi. Starts right up when cold, but after it sits awhile when its warm, it takes a few seconds of cranking to start. Relaced fuel pressure relay, ignition module, and tryed removing coolant temp. sensor connection. All to no avail. This has been doing this for about 2 years. Milage not very good. Any suggestions from someone knowledgable. Have had alot of suggestions. Am on disability and can't afford to just throw parts at it until it's corrected. Any advice would be greatly appreciated.

Dec 9, 2012 | 07:15 AM

norfolknova

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From: 7th realm of hell, Va.

Have you checked for any stored codes on the computer. Most on here will tell you to that first and it makes sense. If there are any stored codes post them on here and people will be able to tell you which direction to go. There are too many variables to be able to tell you what it could be with out checking for the stored codes first

Matt

Dec 9, 2012 | 04:15 PM

Robert Ceplina

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Robert Ceplina

Thank you, I will take it into the local parts store. They read codes for free. I was told that there was not much in computor tech. in this year truck. I bought the Hayes Manual, but was unable to pinpoint my problems solution.

Dec 9, 2012 | 04:50 PM

norfolknova

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From: 7th realm of hell, Va.

Honestly your best bet is to get the codes your self, all you need is some wire, an ink pen and some paper. I believe there is a thread pinned at the top that tells you how to read the codes your self. My 92 never works with the store code reader, but there is a wire, i believe it is called the STO right in front of the hood hinge on the drivers side that you can ground and it will trigger the computer to flash the codes with the check engine light. There are 2 types of codes, KOEO(Key on engine off) and KOER(key on engine running). Within each set of codes there are active codes and CM(constant memory) or stored codes.

Here is a link on how to read the codes yourself
https://www.ford-trucks.com/lc/lc.ph...om%2F%3Fp%3D13

Matt

Dec 9, 2012 | 06:02 PM

Robert Ceplina

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92 ford F150

thank you very much Matt. I will give that a try after the snow stops. It looks really interesting and useful.

Dec 9, 2012 | 06:09 PM

norfolknova

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From: 7th realm of hell, Va.

After you get the codes post them up and we can give you the direction to go in. And don't use them dirty 4 letter words, especially the snow word. LOL

Dec 9, 2012 | 09:23 PM

impish

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If no codes are found, or codes found do NOT relate to a hard start issue:

Put a fuel pressure gauge on the test point in the fuel rail, check pressure with engine running, shut off engine, and watch gauge for a few minutes. If pressure falls off significantly, one or more injectors may be leaking fuel pressure away, creating 2 problems: no pressure available right away when first cranking, and TOO MUCH fuel in the inlet passage(s). Other possibility for pressure loss when engine shuts off is a defective fuel pressure regulator; it's mounted on the fuel rail.

Just a thought. impish