Ask Experts Questions for FREE Help !
Ask
    matt1313's Avatar
    matt1313 Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Oct 1, 2010, 08:23 PM
    1990 chevy 3500
    I am working on a 1990 chevy p/u, and having the following problem, the check engine light does not come on and the vehicle will crank but does not get fuel from injectors. If I short across the oil pressure sensor the light comes on and truck starts and runs for 20 seconds and then fuel shuts off.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Oct 2, 2010, 06:47 AM

    This link should help:

    https://www.askmehelpdesk.com/cars-t...ml#post2123675

    Be sure to test all under hood and under dash fuses. Also, check/replace the fuel pump relay. If the problem persists, clean the main PCM ground and check out the PCM.
    matt1313's Avatar
    matt1313 Posts: 4, Reputation: 1
    New Member
    		  
    #3

    Oct 2, 2010, 10:17 AM
    I have checked all fuses in vehicle, replaced fuel relay, replaced ecm
    I also had the Ecm retested, I also checked for codes and there were none
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #4

    Oct 2, 2010, 10:33 AM

    Do you hear the fuel pump run, when the ignition switch is turned to ON?
    matt1313's Avatar
    matt1313 Posts: 4, Reputation: 1
    New Member
    		  
    #5

    Oct 2, 2010, 06:40 PM
    Comment on TxGreaseMonkey's post
    Yes
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #6

    Aug 7, 2011, 03:36 PM

    I would check/change the sensor. If it is sensing heat(falsely), I could see where it would want to shut fuel down.
    Verify you have the correct sensor.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

1990 chevy pick-up NO START [ 9 Answers ]

I have a 90 chevy Scottsdale 1500. 130000 miles It is running a 350 with throttle body injection. One day just quit. Brought it home and it started, lot of black smoke. Found 2 codes on the computer, O2 sensor (found broke) and temp switch (below -27 for 30 seconds at start-up). Changed the...

Which is better- 350 Ford OR 3500 Chevy [ 2 Answers ]

I am looking to purchase a used truck to haul horses, farm equip, etc. I have noticed far more Fords for sale than Chevy. Are the Ford owners just not satisfied? I know the Ford 6.0 L has had more than its share of warranty claims. For the years of '98 through '02 who produced the most reliable...

1990 chevy truck cranks but no start [ 2 Answers ]

Just finished cleaning the idle mixture, started right up drove better than it ever has then few miles down the road the check engine light comes on, I pull over shut off the engine then after finding nothing visible try to start the motor but won't start.

1990 Chevy bogging [ 1 Answers ]

I have just got a 1990 Chevy truck with a 2000 vortec motor it has a new intake but the same throttle body my question is every time I step on the gas it bogs like the old carb motors sometimes did it has a hesitation to it on take off its only when the rpms are low

1990 chevy 1500 no stsrt [ 1 Answers ]

I have changed the pick up coil, the module ,fuel pump&filter,computer I have ign spark but no pulse on the injectors

View more questions Search