Won't start below 30 degrees

Asked by Jan 12, 2017 at 09:20 AM about the 2000 Chevrolet S-10 2 Dr LS 4WD Extended Cab SB

Question type: Maintenance & Repair

2000 s10 pickup. 115k. When temperature outside  
goes below 30 degrees fuel pump will not prime.  
Engine will crank but not fire. Don't smell fuel after
cranking so there is no leak that I can find.  If
temperature is above 30 trucks runs without issue.
Fires before the 3rd turn of the motor.   
Fuel pump and fuel filter have been replaced  2
weeks ago.  

2 Answers

109,675

If you are getting no spark at that temp, check the coil pack. If you are getting spark look to see if the fuel filter is clogged or maybe a failing fuel pump you will need to test the pressure when it hits 30 degrees.

may be temp sensor for computer not the gauge, scan engine in am b4 starting when engine is at ambient temp. all temp sensors should read identically. this is one possibility . if engine sensor reads wrong its as if the the choke on a carburetor is open. This may not set a code. The fact you mention a certian temp. when it happens directs me to check this. unplug sensor and visually look at connector for coolant presence. there has been instances coolant leaked from sensor thru wire into ECM.. rare. leaking sensor happens and will effect signal.

Your Answer

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
    Reputation
    2,410
  • #2
    Trebor66
    Reputation
    1,030
  • #3
    John Saffrahn
    Reputation
    1,010
View All

Related Models For Sale

Used Chevrolet Silverado 1500
186 Great Deals out of 11,109 listings starting at $999
Used Ford Ranger
70 Great Deals out of 342 listings starting at $2,995
Used GMC Sonoma
14 listings starting at $1,988
Used Toyota Tacoma
33 Great Deals out of 885 listings starting at $5,990
Used Ford F-150
525 Great Deals out of 10,140 listings starting at $1,400
Used Dodge Dakota
11 Great Deals out of 162 listings starting at $2,900
Used Chevrolet Blazer
21 listings starting at $3,998
Used Nissan Frontier
20 Great Deals out of 425 listings starting at $4,950
Used GMC Sierra 1500
258 Great Deals out of 10,810 listings starting at $2,995
Used Dodge Ram 1500
55 Great Deals out of 537 listings starting at $1,300
Used Chevrolet Camaro
807 listings starting at $13,404
Used Ford Mustang
8 Great Deals out of 1,120 listings starting at $1,250

Used Cars For Sale

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.