Crank no Fire 2004 Hyundai Sonata

zcuban1
0

Asked by Nov 16, 2011 at 12:13 AM about the 2004 Hyundai Sonata Base

Question type: Maintenance & Repair

Hello, I have a problem with my 2004 Hyundai Sonata 4cyl. Was driving when the
battery light came on a started losing power, followed by a loud whacking sound.
Pulled over and both alternator and serpentine belts are off and somewhat
shredded. Upon further inspection some pieces had gotten wrapped around the
crank sensor. opened up, cleaned all out, replaced belts, pulley's move free, cams
good. tried to start and it cranks but won't turn over. checked spark, air, ignition
coils, fuses, relays all good. same result, crank no start. sounds like no
compression. when it sits overnight upon initial attempt it will compress 1x but not
enough to fire. then crank with nothing to fire, crank crank crank- turns over but
something is missing. Please advise if you are able. Much appreciated for you time.
Christian - Bartlett, IL

1 Answer

MrRocket12
665

One problem could be that the crank sensor got damaged and is not giving the correct reading.... One way to check this is to disconect the battery for 15 mins and reconect and try to start again. If it starts and doesn't idle or drive correctly and the engine light comes on thats an indication. The other more likely problem you might have is the cam timing has gone out and you can loose all compression like you described. Check it yourself or have it checked by a dealer if you don't know how to. Usualy theres a mark on each cam and one on the crank pulley (sometimes even behind the crank pulley) that have to face exactly upwards. Crank the motor by hand first before tryig to start to check that it doesnt catch on valves. If the timing is correct you may have bent a couple of valves and would need to remove the head and have it overhauld. Hope this helps

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Hyundai Sonata Questions

Hyundai Sonata Experts

#1 toDumbToNotKnow
toDumbToNotKnow
Reputation 1,180
#2 Tom Demyan
Tom Demyan
Reputation 1,060
#3 dandyoun
dandyoun
Reputation 870
View All

Related Models For Sale

Used Hyundai Elantra"
588 Great Deals out of 51,910 listings starting at $2,400
Used Honda Accord"
1,119 Great Deals out of 72,473 listings starting at $1,400
Used Toyota Camry"
1,527 Great Deals out of 87,015 listings starting at $999
Used Kia Optima"
594 Great Deals out of 33,121 listings starting at $1,999
Used Nissan Altima"
1,345 Great Deals out of 84,468 listings starting at $1,500
Used Ford Fusion"
1,197 Great Deals out of 74,125 listings starting at $1,550
Used Honda Civic"
845 Great Deals out of 52,637 listings starting at $995
Used Hyundai Santa Fe"
531 Great Deals out of 32,993 listings starting at $1,950
Used Chevrolet Malibu"
946 Great Deals out of 62,102 listings starting at $1,295
Used Toyota Corolla"
1,122 Great Deals out of 65,659 listings starting at $1,295
Used Mazda MAZDA6"
229 Great Deals out of 14,395 listings starting at $1,495
Used Nissan Maxima"
321 Great Deals out of 23,191 listings starting at $1,750
Used Hyundai Tucson"
202 Great Deals out of 22,518 listings starting at $2,195

Used Cars For Sale

2017 Hyundai Sonata For Sale
14,255 listings starting at $17,471
2016 Hyundai Sonata For Sale
75 Great Deals out of 14,377 listings starting at $11,988
2015 Hyundai Sonata For Sale
159 Great Deals out of 5,103 listings starting at $10,800
2014 Hyundai Sonata For Sale
60 Great Deals out of 1,785 listings starting at $8,992
2013 Hyundai Sonata For Sale
319 Great Deals out of 6,372 listings starting at $6,388