Constant ticking. Worse when pressing the gas.

Asked by Aug 29, 2016 at 11:26 PM about the 2004 Hyundai Tiburon Base

Question type: Maintenance & Repair

2004 Hyundai Tiburon. 5 Speed. 100k
miles(second motor) the first one ended up
throwing a rod bearing. The cause I feel is
something to do with the ticking noise.

To eliminate reasonable suspicion..
Oil is at the proper level.
Coolant and fluids full.
And not due for an oil change for another 2500
miles.

The car when started from cold start, has an
intense rattling sound in the motor but when the
idle drops the sound partially diminishes but is still
distinguishable, especially to a mechanic. When I
put it into gear and drive beyond 2500 RPM the
engine rattle intensifies. (THAT IS 3500 RPM
BEFORE A RED LINE BTW) Now when cruising,
constant pressure to the pedal the sound gets
lighter, but under a load like a hill or starting from
stop whereas you need to accelerate the engine
rattles even more. It sounds pretty sketchy,
especially when I drive and decide I need to pass
someone and shift at higher RPM to accelerate
quicker. Its insane and I just can't grasp that this is
my second motor in this car with in the first four
days of purchasing this AS IS vehicle. Can
someone help??????????? Thank you!

3 Answers

31,125

Some ticks/knocks are harsher under acceleration because the parts making the noise (piston wrist pin, rod bearing) are under greater pressure then. First, try and determine whether the tick/knock is equal to or one-half engine RPM, that will help you isolate the tick to the valve train/cam or the lower block (everything connected to the cam is 1/2 engine RPM). You say "intense rattling sound" at startup, usually that would point to the valve train. I don't want to just throw guesses at you, you and your mechanic will have to go over the engine to find the source of the noise, it'll either be a fairly easy fix (like lifters, rockers) or an engine rebuild (main, rod, wrist pins, cam bearings). Sucks but what can you do.

Thanks for the reply KenF. And, unfortunately the last engine had the same sounds and ended up over heating and throwing a bearing. I have just never seen a vehicle run like its supposed to perfectly when in it has a rattling coming from the bay. 1/2 the RPM the rattling goes away...It gets quiet, but as soon as you drive off and go into 3k RPM the rattling intensifies as the RPM increases. I've worked on cars for a while and this just stumps me, it makes me think that HYUNDAI has not a quality 2.0l motor... From my knowledge it sounds like either a cam tick, or lifters are getting stuck. Should I run full synthetic in the car??

my 1.8 in my 97 tib rattles and i found that the chain that connects the two cams is making the noise,, that may be what you have

Your Answer

Tiburon

Looking for a Used Tiburon in your area?

CarGurus has 410 nationwide Tiburon listings starting at $2,500.

ZIP:

Hyundai Tiburon Experts

  • #1
    kristinaklc
    Reputation
    630
  • #2
    California_Kid
    Reputation
    460
  • #3
    wtrujillo_77
    Reputation
    360
View All

Related Models For Sale

Used Ford Mustang
460 Great Deals out of 42,889 listings starting at $1,488
Used Mitsubishi Eclipse
19 Great Deals out of 1,130 listings starting at $1,999
Used Honda Civic
736 Great Deals out of 54,088 listings starting at $1,495
Used Nissan 350Z
35 Great Deals out of 1,160 listings starting at $3,995
Used INFINITI G35
70 Great Deals out of 2,858 listings starting at $1,000
Used Toyota Celica
3 Great Deals out of 301 listings starting at $1,200
Used Honda Civic Coupe
185 Great Deals out of 11,067 listings starting at $1,695
Used Scion tC
127 Great Deals out of 3,374 listings starting at $1,000
Used Honda Accord
909 Great Deals out of 79,343 listings starting at $1,295
Used Mazda RX-8
7 Great Deals out of 345 listings starting at $2,677
Used Hyundai Tucson
218 Great Deals out of 19,075 listings starting at $1,995

Used Cars For Sale

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.