Mechanics

HYUNDAI XG350 THERMOSTAT PROBLEM

2004 Hyundai XG350

My thermostat is fluctuating drastically, I just had it replaced a few weeks ago. Now the heat is blowing cold air, I also noticed my car is stalling when I sit at a long light. I have had 3 diff. Mechanics take a look at it but I got 3 different answers. I want to be confident in knowing the problem before paying to get it repaired.

Thanx
Avatar
HyundaiXg350L
February 24, 2013.




We cannot see or touch it. What were the 3 opinions?

Is the check engine light on?

Why was the thermostat replaced originally?

Did it overheat at any time?

Roy

ASEMaster6371
Feb 24, 2013.
The check engine light isn't on

the thermostat was replaced because occasionally the temp. Gauge would fluctuate now it's ever single time I drive.

I believe its over heating, yes

Tiny
HyundaiXg350L
Feb 24, 2013.
First thing is get a leak down test done to verify that the head gaskets are not bad.

Beyond that, sounds like air in the system but should have bled off by noe.

Roy

ASEMaster6371
Feb 24, 2013.
Can I do a leak test myself or I have to go to a shop?

Tiny
HyundaiXg350L
Feb 24, 2013.
If you have tool to do the test, yes. It would be cheaper to have someone do it for you.

Roy
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ASEMaster6371
Feb 24, 2013.
Ok great
someone told me it may be my water pump and they are expensive
.

Could that also be the problem?

Tiny
HyundaiXg350L
Feb 24, 2013.
Not really no issues with impellers on these pumps.

Start with the test first before assuming anything

Roy

ASEMaster6371
Feb 24, 2013.
Ok thanks

Tiny
HyundaiXg350L
Feb 24, 2013.
Good luck

ASEMaster6371
Feb 24, 2013.

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