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 ?

6 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

10,590

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

10,590

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

10,590

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.

Your Answer

Add photo

Related Questions

  • truck won't stay running 16 answers

    have had some problems keeping truck running, a couple of weeks ago was stopped at red light and truck died got towwed home now it will start but won't stay running runs good for about a minute and sm...

    1991 Ford F-150 S SB

    -

    Maintenance & Repair

  • Truck won't run 2 answers

    So my truck will start when I connect the poles on the starter solenoid but will not stay running without pumping the gas. Is it just the starter and fuel, or is it something else?

    1991 Ford F-150 XLT Lariat Extended Cab LB

    -

    Maintenance & Repair

  • Truck won't run 4 answers

    Was driving truck acted like it ran outta gas started it again started right up then died again will turn over and start with ethanol then dies instantly please help

    1992 Ford F-150

    -

    Maintenance & Repair

  • Truck won't stay running

    My 1985 f150 will crank over in the start position but when in the run position it won't stay running the relay blew the starter blew and the ignition Switch was damaged. I'm buying a ignition cont...

    1985 Ford F-150 STD Extended Cab LB

    -

    Maintenance & Repair

  • Truck won't stay running 4 answers

    I have a 1987 ford f150 5.0L recently I had to jack the motor up and change the oil pump ever since then the truck won't stay running no longer than a minute. It'll crank up and after a few secon...

    1987 Ford F-150 XL Standard Cab SB

    -

    General

F-150

Looking for a Used F-150 in your area?

CarGurus has 212,349 nationwide F-150 listings starting at $1,000.

ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 6,930
#2 dandyoun
dandyoun
Reputation 4,180
#3 tennisshoes
tennisshoes
Reputation 2,510
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,286 Great Deals out of 155,167 listings starting at $1,395
Used GMC Sierra 1500
935 Great Deals out of 62,272 listings starting at $1,395
Used Dodge Ram 1500
530 Great Deals out of 12,833 listings starting at $1,995
Used Ford F-250 Super Duty
396 Great Deals out of 45,084 listings starting at $2,000
Used Toyota Tundra
584 Great Deals out of 30,719 listings starting at $2,637
Used Toyota Tacoma
619 Great Deals out of 35,131 listings starting at $2,155
Used Ram 1500
1,200 Great Deals out of 115,437 listings starting at $6,995
Used Ford Mustang
361 Great Deals out of 44,495 listings starting at $1,000
Used Ford F-250
514 listings starting at $3,500
Used Nissan Titan
222 Great Deals out of 16,972 listings starting at $3,999
Used Ford Explorer
937 Great Deals out of 74,004 listings starting at $750
Used Chevrolet Tahoe
776 Great Deals out of 28,447 listings starting at $1,500
Used Chevrolet Colorado
264 Great Deals out of 19,422 listings starting at $1,995
Used Ford Ranger
204 Great Deals out of 6,719 listings starting at $1,450
Used Jeep Wrangler
392 Great Deals out of 19,082 listings starting at $3,000