Truck won't run

Asked by Mar 11, 2015 at 09:41 PM about the Ford F-150

Question type: Maintenance & Repair

Hi, I have 1995 F150 with a 4.9 in line engine. I'm having fuel line problems. My truck won't run unless you spray starting fluid into it then it cuts out as soon as the starting fluid burns off. We've changed the fuel pump we've changed the fuel pressure regulator. We ran a compression test on the fuel rail and it holds at 55psi then we pulled the fuel rail and cleaned and tested each injector and they all work with a good spray pattern but when I pull the spark plugs they are dry? How can I not be getting fuel into the cylinders if the injectors are spraying when I have them out? When fuel rail and injectors are re-installed I have no fuel in cylinders.. I forget to mention that  I also have strong spark at the plugs ?

7 Answers

... it was apparently the map sensor. When it was by-passed the truck went into "limp mode" and started right up. Went to the junkyard for a sensor

14,030

Did you have a check engine light?

no, just started running rough and then wouldn't start up at all. Runs really smooth with the replaced MAP sensor and I'm hoping the gas mileage is better

14,030

Wow, I have never heard of a map doing all that, but with today's cars nothing is impossible. I am glad you found your problem and posted here. I'm sure it will help others. What's weird is a Map usually throws a code. Anyway thanks again. Mike.

no dash light code, but did show a code 126 (voltage out of specs) when we jumped the EEC to get manual blinking codes- Biggest problem through the project was advice from helpful friends... lol

14,030

Ha, I know everyone wants to throw in there 2 cents, but you had a really weird and difficult problem. The engine had everything it needed to run. I experienced something similar on a 91 Chevy 3.1. we pulled our hair out and finally we figured out it was injectors causing the problem and again no trouble codes. That is the problem with OBD1 automobiles , they can be hard to diagnose. Well, anyway good luck and thanks for the info. Mike.

I have the exact same issue on my 95 f150 I have 50psi at the rail and good injectors it would not fire up on fluid and if you pump the gas pedal it would barely stay running. I’ll try putting a map drone or in it and hopefully me and my freind can finally make a lap around the block in it

Your Answer:

F-150

Looking for a Used F-150 in your area?

CarGurus has 198,756 nationwide F-150 listings starting at $1,300.

ZIP:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    10,790
  • #2
    dandyoun
    Reputation
    4,970
  • #3
    tennisshoes
    Reputation
    3,890
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,780 Great Deals out of 154,899 listings starting at $1,700
Used GMC Sierra 1500
794 Great Deals out of 60,062 listings starting at $1,500
Used Ford F-250 Super Duty
467 Great Deals out of 37,525 listings starting at $1,999
Used Toyota Tundra
455 Great Deals out of 37,801 listings starting at $1,750
Used Dodge Ram 1500
334 Great Deals out of 9,264 listings starting at $1,800
Used Ram 1500
1,035 Great Deals out of 122,760 listings starting at $3,500
Used Toyota Tacoma
419 Great Deals out of 48,978 listings starting at $2,400
Used Ford Mustang
310 Great Deals out of 39,695 listings starting at $1,312
Used Chevrolet Colorado
282 Great Deals out of 38,678 listings starting at $2,495
Used Ford F-250
389 listings starting at $3,495
Used Nissan Titan
237 Great Deals out of 21,936 listings starting at $1,995
Used Ford F-350 Super Duty
330 Great Deals out of 21,708 listings starting at $3,995
Used Ford Explorer
870 Great Deals out of 69,547 listings starting at $1,275
Used Chevrolet Tahoe
633 Great Deals out of 37,962 listings starting at $1,199
Used Ford Ranger
105 Great Deals out of 4,188 listings starting at $1,700

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.