Engine light came on

Tiny
STEEL
  • MEMBER
  • 1999 HYUNDAI TIBURON
  • 4 CYL
  • FWD
  • MANUAL
  • 82,000 MILES
A few months ago, the car started shaking out of no where, and the check engine light came on. I noticed the coolant was low, and the engine oil seemed fuller than usual, so I thought it may be the head gasket (but there were no other symptems). I broght the car in, and was told it was just in need of a tune-up, and there was no leak. They topped of my fuilds, changed the oil, and it was fine since then. Now, the coolant is low again, but I can't find a leak. There is no coolant in the engine, on the floor, etc. Do you have any idea where the coolant could be going?
Tuesday, January 20th, 2009 AT 9:55 AM

11 Replies

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
I have seen a few times where one of the smaller heater hoses behind/underneath the intake manifold develops a leak, and it is only leaking at high rpm (aka while driving due to higher pressure), and it will stop leaking when the vehicle is at idle.

The best way is to bring the vehicle in and have your technician perform a compression or a leak-down test, to check when the leak is going.
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Thursday, January 22nd, 2009 AT 1:28 AM
Tiny
SPEED2000
  • MEMBER
  • 9 POSTS
  • 1998 HYUNDAI TIBURON
  • 4 CYL
  • FWD
  • MANUAL
  • 128,800 MILES
I have a tiburon 98, the engine light comes on while the car is idling, or after a fast drive, coming to a stop, like at a red light.
When the car is idling in the mornings, the light doesnt come on since its cold, any ideas?
sometimes going in 1st gear, the car shutter, or acts as if it wants to stall, then pressing more gas, its back to normal. I know the problem is around the throttle body area on the pic here.

TPS? o2?


https://www.2carpros.com/forum/automotive_pictures/224560_maf1_2.jpg

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Friday, January 3rd, 2020 AT 10:02 AM (Merged)
Tiny
SENSIBLEJACK
  • MEMBER
  • 3 POSTS
Fault is due to- Long Term Fuel trim additive, air system too lean.
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Friday, January 3rd, 2020 AT 10:02 AM (Merged)
Tiny
SPEED2000
  • MEMBER
  • 9 POSTS
I'm trying to take off the intake manifold on my car. How easy or hard is the job, do you recomment a pro, or will I be able to do it. Does it involve removing many diff things. Any step by step instructions?
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Friday, January 3rd, 2020 AT 10:02 AM (Merged)
Tiny
LUCKY1342090
  • MEMBER
  • 1 POST
  • 1997 HYUNDAI TIBURON
  • 4 CYL
  • 2WD
  • MANUAL
  • 118,000 MILES
Ive had both of the o2 sensors replaced and the light was off I drove it today in the rain and when I arived at my destination I realized that the light was back on and it sounded like a flock of geese under my hood it runs fine just the sound and light my buddy told me it might because the rain and the aftermarket intake I was hoping someone could shed a lil light on my lil problem well I hope its a little problem.
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Friday, January 3rd, 2020 AT 10:02 AM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Engine light indicates a fault stored in vehicle's computer. Have codes scanned by local auto part store and post codes you get here so I can further assist you.
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Friday, January 3rd, 2020 AT 10:02 AM (Merged)
Tiny
763MAD
  • MEMBER
  • 2 POSTS
  • 1991 HYUNDAI TIBURON
  • 4 CYL
  • FWD
  • MANUAL
  • 145,000 MILES
My dar was running okay the check engine light was on. I replaced plug wires, plugs, and sprayed the throttle body, and MAF sensor with cleaner. It started for a brief time then quit running. I let it sit for a half hour and it started right up but again it quit running. Last night it started and seemed okay, then this morning would not even fire. I was wondering what to check first? I do not want to throw a bunch of unneeded parts in it. I guess I should have left well enough alone.
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Friday, January 3rd, 2020 AT 10:02 AM (Merged)
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
Scan for codes.

Rent borrow or buy a cheap scan tool, since you probably cannot make it to an auto parts store (where this service is usually free).

YouTube is a good place to see how to use the particular one you obtain.

Write down the code numbers (exactly) You may have more than one code.

Return here, we will try to interpret what they mean and offer ideas as to what the check/ repair/ replace.

The Medic
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Friday, January 3rd, 2020 AT 10:02 AM (Merged)
Tiny
RENEE L
  • ADMIN
  • 1,260 POSTS
Hello, 763MAD

Here is a link that if you decide to conduct the scan yourself will be of help to you. The link features an article with written step by step instructions and pictures explaining how to do the scan yourself, also I have included a link to our YouTube channel with a how to video on code scanning.

This is applicable even if your check engine light is not on.

Most scanners are inexpensive to purchase, you can purchase one online from sites like Amazon.com

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

https://youtu.be/YV3TRZwer8k

Once you have the codes please get back to us so that we can further assist you. We are always happy to help.

Thank you for visiting 2CarPros.com.

Kindest regards,

Renee
Admin
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+1
Friday, January 3rd, 2020 AT 10:02 AM (Merged)
Tiny
763MAD
  • MEMBER
  • 2 POSTS
I have a code reader it was showing P0300, P0302, P0304, P0310, so I unplugged the map sensor it started right up, then plugged it back in while it was running, seems to run fine now, no check engine light, no codes yet, it is weird, but I hope it keeps going the way it is running now, thanks
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Friday, January 3rd, 2020 AT 10:02 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,144 POSTS
Hey 763MAD,

Good ahead and clear the codes, here is a guide that will help

https://www.2carpros.com/articles/check-engine-light-clear-codes

Good to hear, please use 2CarPros anytime we are here to help.

Best, Ken
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Friday, January 3rd, 2020 AT 10:02 AM (Merged)

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