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Hyundai Elantra Questions

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2003 Hyundai Elantra GT: I take out 4 rusted/corroded screws/Bolts for the Heat Shield and change the Oxygen Sensor, upstream, top one, and there is a metal heat shield over it and attached to the manifold.
**The 4 bolts/screws are rusted/corroded in and haven't probably needed to be removed since year 2002 when the car was made.
I was told by a longtime/experienced mechanic NOT to use an "Air compressor gun"
I tried BP Blaster and taking a LONG time!!
**How can I get them out??



Car wouldn't start, replaced fuel pump, drove one day. Next day, wouldn't start. What now?
I'm normally able to unlock my doors by push button, but it has recently stopped working along with the 12v charger ports in the car. Has anyone else experienced this? I have an 2013 Elantra GT hatchback.
I have 2016 elantra I think my bearings went
2003 Hyundai Elantra GT: I want to change the Oxygen Sensor, upstream, top one, and there is a metal heat cover over it and attached to the manifold.
**The bolts/screws are rusted/corroded in and haven't probably needed to be removed since year 2002 when the car was made.
I was told by a longtime/experienced mechanic NOT to use an "Air, compressor gun"
I tried BP Blaster and taking a LONG time!!
**How can I get them out??
Need To Know
My tail light bulbs are out, is it difficult to replace them myself
Trans bangs from time to time, back shift or of. Not sure.
Car won't go in gear
If I push in the OD button, the transmission just slips & the car won't move ! I know there's a solenoid that operates this, but where IS it & how expensive is it ? Thanks !
Hi ,
car work great for almost 4 years.
Yesterday Odometer, tachometer, gas indicator and speedometer stopped working and light engine come on

Saw comments about old Elantras having same issue...
Any advise?
Thank you.
I was merging onto a highway and accelerated rather quickly , almost instantly I heard a sound that sounded like wind flapping a piece of paper in the wind , but louder. I can still hear the sound when driving st speed of 40mph+ with my windows completely up. Occasionally there is a faint metal knocking sound at these speeds also. When driving in the city when I push the gas a little bit and then let off of it my car has a tiny tiny jerk to it, what's going on???? :(((
Still has same problem
when starting my car at times when I place the key in the ignition and turn it some times it will start and some times it will not. more frequently lately and most of the time in the morning
it feels like the transmission is slipping, the car actually throws you forward and backward before dying.
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