should my fuel pump run continiously with key on if I have bleeder valve under hood open

10

Asked by May 28, 2015 at 06:22 PM about the 2000 Chevrolet S-10 2 Dr LS 4WD Extended Cab SB

Question type: Maintenance & Repair

truck won"t start after sitting a few days.Fuel pump has 24000 miles on it new pressure
regulator and filter.Smells flooded when trying to crank.If I turn key on and hold bleeder
valve under hood down should pump continue to run.Pump is pumping very good thru
filter and at intake with lines loose

7 Answers

56,565

No, it should stop after 3 to 5 seconds if the engine is not running. As a safety precaution when the computer determines the engine has stopped (less than 600 RPMs) the fuel pump is shut off. Sounds like the fuel pump relay is stuck. HTH. -Jim

10

swapped horn and fuel relays to no avail.It will almost start at times and seems to be running at 25rpms but won't catch up.When it finially does crack operates perfectly no rough idle or hesitation and will start back normally.

1 out of 1 people think this is helpful.
58,255

Check the fuel injector,s,

1 out of 1 people think this is helpful.
56,565

You'll also want to check the fuel pressure at the fuel rail. If it's excessive the fuel pressure regulator is suspect. But first, find out why the fuel pump is running continuously. That shouldn't be. HTH. -Jim

10

fuel pump isn't running constant.truck was running perfect last week,left for holiday weekend and 4 days without running now can't get it to start at all even with starting fluid.I'm baffed working fine when parked,actually made a 300 mile trip pryor to parking it.

56,565

Remove the spark plugs and make sure they're not gasoline fouled. If they are replace them and look for a fuel problem. Bad injectors or bad fuel pressure regulator. My guess is that one or more injectors leaked down and fouled out the plugs. You can try holding the accelerator to the floor while cranking. This puts the computer in clear flood mode. HTH. -Jim

615

Another way to test for a bad or continuous running fuel pump is to Disconnect the Battery? It should shut off immediately !

Your Answer

Add photo

Related Questions

  • 1989 S10 runs, but won't go 12 answers

    I have an 1989 s10 pickup with a 2.8 v6 fuel injected motor, 5 speed. It starts, and as long a s I give it gas it stays running. It revs up like it wants to go, but When I try to drive it, it stall...

    1989 Chevrolet S-10

    -

    Maintenance & Repair

  • 97 S10 4x4 4.3 help 1 answer

    Ok, my buddy has a 1997 S10 4x4 4.3 and it stopped running about a month ago well he checked the fuel pump and it works good has good presuor, it's getting fuel to the throttle body and it makes a...

    1997 Chevrolet S-10 2 Dr LS 4WD Standard Cab Stepside SB

    -

    Maintenance & Repair

  • 2003 s-10 wont start 11 answers

    2003 s-10 4.3 turns over wont start . It has obd-2 p0016,p0101,p0128,p0155,p0335. I replaced the fuel pump a filter .I have power to the relay, jump the relay and pump doesn't come on. Grounds are ...

    2003 Chevrolet S-10 3 Dr LS Extended Cab SB

    -

    Maintenance & Repair

  • 2.2.liter chevy s-10 has intermittent problem 1 answer

    Runs fine until it comes up to temperature then back fires and misses at low rpms you can give it fuel when driving and kicks down and runs fine..Gives a p0301 code. I changed plugs and wires and coil...

    2000 Chevrolet S-10 2 Dr LS Xtreme Standard Cab SB

    -

    Maintenance & Repair

  • What role does the ecm play in giving the fuel pump power to turn on? 37 answers

    When I put the key forward I don't hear the fuel pump activate.

    1999 Chevrolet Suburban C1500 LS

    -

    Maintenance & Repair

S-10

Looking for a Used S-10 in your area?

CarGurus has 1,629 nationwide S-10 listings starting at $2,450.

ZIP:

Search Chevrolet S-10 Questions

Chevrolet S-10 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,050
#2 John Saffrahn
John Saffrahn
Reputation 890
#3 Trebor66
Trebor66
Reputation 880
View All

Related Models For Sale

Used Ford Ranger
217 Great Deals out of 6,919 listings starting at $1,500
Used Chevrolet Silverado 1500
2,553 Great Deals out of 147,463 listings starting at $2,000
Used GMC Sonoma
12 Great Deals out of 499 listings starting at $1,500
Used Ford F-150
3,362 Great Deals out of 205,061 listings starting at $1,273
Used Toyota Tacoma
740 Great Deals out of 32,548 listings starting at $1,900
Used Dodge Dakota
110 Great Deals out of 4,344 listings starting at $900
Used Chevrolet Blazer
1,356 listings starting at $1,699
Used GMC Sierra 1500
1,142 Great Deals out of 57,183 listings starting at $995
Used Nissan Frontier
418 Great Deals out of 21,751 listings starting at $1,995
Used Dodge Ram 1500
572 Great Deals out of 12,810 listings starting at $1,295
Used Chevrolet C/K 1500
3 Great Deals out of 1,042 listings starting at $1,999
Used Chevrolet Camaro
665 Great Deals out of 38,931 listings starting at $2,995
Used Chevrolet Tahoe
1,059 Great Deals out of 32,283 listings starting at $1,495