My car wont stay started after i had unplugged and re plugged battery..

Asked by Oct 08, 2015 at 02:17 AM about the 2006 Hyundai Sonata

Question type: Maintenance & Repair

well my oldest unplugged the battery to change a head lite bulb . yes i know ..anyways now after reconnecting. car wont stay started.. dies .

8 Answers

785

Don't understand "Unplugged the battery", do you mean "disconnected"? The battery only starts the car, once started the spark plugs derive spark from the alternator. If the car starts, its a good chance the batter is good and hooked up correctly. However, she may have disconnect another wire that leads from the alternator to the coil pack (which sparks your spark plugs). Look for any more disconnected wires from the alternator to the coil

ok after she reconnected the battery, started the car, it ran for like 1min then died. and while its running.. it very loopy/runs ruff at times

97,095

It sounds like it didn't complete the reset procedure, I would try disconnecting the battery again then turn the headlight switch on, doing this drains the capacitors and clears the ECM memory, the longer you can leave it the better, but it has to be disconnected for at least a minute, turn off headlight switch and reconnect the battery, on some vehicles this will set off the alarm if equipped, so make sure you know how to shut it down before performing this procedure, start engine and drive as you normally do for about 20 minutes, this will relearn the ECM as to vehicle and how it is driven. HTH

1 of 1 people found this helpful.
Best Answer

so(1) disconnect battery .(2) turn ON head lights ..wait like what 30mins? then(3)turn OFF head lights (4) reconnect battery (5) restart car . and run 20mina or so..... i dont know if she touched the bulb but i think she did.. and if it doesnt bulb lite doesnt work but car DOES.. ill repeat this from steps after i replace headlamp bulb ..pray she didnt touch it ggrr . ill get back to u..thanks

97,095

Oh man touched the bulb, and disconnected the battery, are you two going to have a talk about reading instructions? Good Luck

ok car still doing the same i guess next is map censer what i call it... off there air filter,, its a used part bout 4mths old.. acts same.. just funny it just did this at bulb changing time..

97,095

Yeah used emission parts if they are good they don't last long, is the check engine light on also?

785

Your ECM might be completely bad. If all you did was disconnect the ground and replace a headlight. It should have booted right back up with this stock programming in tact. If it only stays on for a minute you might have a fuel pump relay issue. There could be a short and the fuel pump relay is overloaded and then turns off. If you are giving it gas, does it die?

Your Answer

Add photo

Related Questions

Sonata

Looking for a Used Sonata in your area?

CarGurus has 47,743 nationwide Sonata listings starting at $1,195.

ZIP:

Search Hyundai Sonata Questions

Hyundai Sonata Experts

#1 toDumbToNotKnow
toDumbToNotKnow
Reputation 1,520
#2 Tom Demyan
Tom Demyan
Reputation 1,300
#3 dandyoun
dandyoun
Reputation 1,060
View All

Related Models For Sale

Used Hyundai Elantra
646 Great Deals out of 41,981 listings starting at $900
Used Honda Accord
1,049 Great Deals out of 66,932 listings starting at $1,000
Used Toyota Camry
1,225 Great Deals out of 82,694 listings starting at $750
Used Kia Optima
546 Great Deals out of 28,618 listings starting at $1,750
Used Nissan Altima
1,281 Great Deals out of 74,430 listings starting at $1,000
Used Honda Civic
830 Great Deals out of 83,705 listings starting at $750
Used Ford Fusion
1,260 Great Deals out of 76,082 listings starting at $1,500
Used Chevrolet Malibu
1,102 Great Deals out of 79,830 listings starting at $2,500
Used Toyota Corolla
1,002 Great Deals out of 68,557 listings starting at $1,800
Used Nissan Maxima
332 Great Deals out of 24,098 listings starting at $1,999
Used Hyundai Santa Fe
245 Great Deals out of 15,180 listings starting at $1,475
Used Mazda MAZDA6
181 Great Deals out of 14,526 listings starting at $1,395
Used Chevrolet Impala
545 Great Deals out of 35,509 listings starting at $899

Used Cars For Sale

2018 Hyundai Sonata For Sale
7,779 listings starting at $16,900
2017 Hyundai Sonata For Sale
140 Great Deals out of 16,725 listings starting at $11,982
2016 Hyundai Sonata For Sale
85 Great Deals out of 4,007 listings starting at $9,649
2015 Hyundai Sonata For Sale
149 Great Deals out of 4,338 listings starting at $8,500
2014 Hyundai Sonata For Sale
188 Great Deals out of 4,057 listings starting at $7,490

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.