Hard to start on cold morning

30

Asked by Wilsie48 Nov 28, 2015 at 01:23 PM about the 2010 Hyundai Accent L 2-Door Hatchback FWD

Question type: Maintenance & Repair

Hard to start on cold morning ,starter or battery

5 Answers

54,820

Check air filter and clean throttle body replace fuel filter and add Lucas Fuel Injector cleaner to gas tank.

172,875

Check the fuel pressure when its cold...you may need a pump or you have a leaking injetor..

1 people found this helpful.
172,875

Check the fuel pressure when its cold...you may need a pump or you have a leaking injetor..

2 people found this helpful.
60

I will get right to the point... the fix is to make sure the Crankshaft Position Sensor is pushed all the way into its mounting location (hole) in the block. Most often you will find that the rubber o-ring on the sensor prevents sensor from seating all the way into the block. Should the o-ring present a major problem in trying to seat the sensor, you can get another o-ring or delete it and use an RTV sealant (that can handle the engine temperature) instead. Once the Crankshaft Position Sensor is properly seated the cold start issue should cease. Technical explanation: When said sensor is not seated properly, the gap between sensor and Reluctor Ring (on crankshaft) is is larger than it should be... this results in a weaker electrical signal to the sensor and; therefore, the signal to the computer that instructs the fuel injectors to operate will be too weak to initiate injector operation and the engine will not start. Why only when cold? Signal strength from crank sensor is dependent upon two things: 1) the gap between sensor and reluctor ring and 2) how fast (rpm) the reluctor ring is turning. Cold weather causes available battery power to be weaker and motor oil to be thicker... result is lower crank speed (RPM). This fix was found through weeks of research, a lot of trial and error, and quite an expense (new plugs, wires, coil pack, fuel sending unit, and fuel pressure regulator). Should you be looking for a code on your scanner (or Auto Zones scanner, or Pep Boys scanner....)... not going to happen as a trouble code will only appear if the sensor is bad (open coil); sensor is not bad, it is just not properly seated into the block.

6 people found this helpful.

Your Answer:

Accent

Looking for a Used Accent in your area?

CarGurus has 1,090 nationwide Accent listings starting at $1,500.

Postal Code:

Hyundai Accent Experts

  • #1
    karibt
    Reputation
    1,970
  • #2
    dvigano
    Reputation
    1,500
  • #3
    G A Arne
    Reputation
    1,420
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Hyundai Elantra
139 Great Deals out of 5,344 listings starting at $1,995
Used Honda Civic
125 Great Deals out of 8,298 listings starting at $1,595
Used Toyota Corolla
189 Great Deals out of 5,141 listings starting at $1,990
Used Hyundai Sonata
41 Great Deals out of 1,417 listings starting at $3,990
Used Kia Forte
43 Great Deals out of 2,083 listings starting at $1,995
Used Kia Rio
14 Great Deals out of 534 listings starting at $2,600
Used Toyota Camry
56 Great Deals out of 1,723 listings starting at $1,495
Used Mazda MAZDA3
67 Great Deals out of 3,052 listings starting at $1,499
Used Ford Focus
55 Great Deals out of 1,574 listings starting at $2,495
Used Nissan Sentra
55 Great Deals out of 2,887 listings starting at $1,195
Used Chevrolet Cruze
108 Great Deals out of 2,975 listings starting at $1,600
Used Honda Accord
53 Great Deals out of 1,626 listings starting at $100
Used Nissan Versa
8 Great Deals out of 693 listings starting at $1,495
Used Volkswagen Jetta
97 Great Deals out of 2,585 listings starting at $1,995

Used Cars for Sale

2020 Hyundai Accent For Sale
96 listings starting at $14,900
2019 Hyundai Accent For Sale
7 Great Deals out of 104 listings starting at $12,495
2018 Hyundai Accent For Sale
5 Great Deals out of 18 listings starting at $11,900
2017 Hyundai Accent For Sale
16 Great Deals out of 159 listings starting at $7,250
2016 Hyundai Accent For Sale
3 Great Deals out of 175 listings starting at $5,789

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. Content will be removed if CarGurus becomes aware that it violates our policies.