My 2002 Trailblazer LTZ is getting coolant in the oil. What causes this?

Stephanie3131
40

Asked by Stephanie3131 Mar 11, 2013 at 11:55 AM about the 2002 Chevrolet TrailBlazer LTZ 4WD

Question type: Maintenance & Repair

14 Answers

DavidH25
Not Active

Head gasket blown, less likely cracked head or block

2 out of 2 people think this is helpful.
Stephanie3131
40

Just changed the oil yesterday never started it up and looked this morning and it was milky. I started it and sounded bad for a minute and then drove fine.

Stephanie3131
40

I just drove it to the shop a mile from the house, is it a costly fix?

1 out of 1 people think this is helpful.
DavidH25
Not Active

Unfortunately, yes. Expensive. It will dirve OK until it overheats, but do not drive it anywhere else, to prevent further damage from improper lubrication in the rest of the engine. Sorry to bear bad news. $1500 minimum

2 out of 2 people think this is helpful.
DavidH25
Not Active

Wait, hold on...you changed the oil but never started it? Did you put the oil in the right place????

Stephanie3131
40

Yes. Lol . It ran hot one day so we checked the antifreeze and notices it was empty! So we added antifreeze and checked it the next day and it was empty again. Never drove it again after it ran hot. Checked the oil and that where we found our antifreeze. So we changed the oil and it went there again. Today is the first day I drove it since it got hot and we noticed the problem last week.

DavidH25
Not Active

I didn't mean to insult you Stephanie. But it has been known to happen. So back to my first answer.

1 out of 1 people think this is helpful.
Stephanie3131
40

No insult taken. I've been known to do some silly things. I let a man do anything under a hood bc I could prolly do something like that.

1 out of 1 people think this is helpful.
Stephanie3131
40

Could it be a cracked Cylinder?

Michael McGrail
5,015

Sounds like a blown head gasket or intake gasket. Since you have water in the oil, it is not safe to drive. You will cause further engine damage by driving it. Very unlikely it is a cracked head or block causing the issue. It is an expensive job to pay to have done, and quite difficult to do on your own as certain specs (torque yields, etc) are needed as well as several specialty tools.

2 out of 2 people think this is helpful.
Stephanie3131
40

Today I drove it a mile to shop. Just kinda curious as to what it could be. Truck still drives fine though.

1 out of 1 people think this is helpful.
DavidH25
Not Active

Sorry, the battery in my wireless mouse went dead and had to search around for a battery. Anyway, Michael is right, a cracked cylinder is remotely possible, and cracked head and/or block also, unless you drove it overheated for a long period, which it seems you did not. As I said, that coolant in the crankcase will render the oil almost useless. Sure, it will drive fine, but not for long.

2 out of 2 people think this is helpful.
DavidH25
Not Active

Be prepared to spend some money. again, sorry to be the bearer of that

1 out of 1 people think this is helpful.
Stephanie3131
40

I guess I will no the fate of this tomorrow.

1 out of 1 people think this is helpful.

Your Answer

Related Questions

TrailBlazer
Looking for a Used TrailBlazer in your area?
CarGurus has 6,902 nationwide TrailBlazer listings starting at $1,888.
ZIP:

Search Chevrolet TrailBlazer Questions

Chevrolet TrailBlazer Experts

#1 18TandSVT
18TandSVT
Reputation 180
#1 dandyoun
dandyoun
Reputation 180
#3 John Saffrahn
John Saffrahn
Reputation 160
View All

Related Models For Sale

Used Chevrolet TrailBlazer EXT"
65 Great Deals out of 1,756 listings starting at $1,500
Used GMC Envoy"
145 Great Deals out of 2,839 listings starting at $1,995
Used Chevrolet Tahoe"
822 Great Deals out of 31,890 listings starting at $1,795
Used Jeep Grand Cherokee"
841 Great Deals out of 53,194 listings starting at $987
Used Ford Explorer"
1,028 Great Deals out of 44,328 listings starting at $999
Used Chevrolet Silverado 1500"
1,690 Great Deals out of 166,894 listings starting at $950
Used Chevrolet Impala"
1,980 Great Deals out of 59,222 listings starting at $995
Used Chevrolet Blazer"
28 Great Deals out of 2,466 listings starting at $1,495
Used Dodge Durango"
298 Great Deals out of 18,894 listings starting at $1,200
Used Ford Escape"
1,555 Great Deals out of 63,093 listings starting at $800
Used GMC Yukon"
289 Great Deals out of 10,682 listings starting at $2,950
Used Ford F-150"
1,794 Great Deals out of 177,031 listings starting at $1,249

Used Cars For Sale

2009 Chevrolet TrailBlazer For Sale
7 Great Deals out of 144 listings starting at $8,995
2008 Chevrolet TrailBlazer For Sale
73 Great Deals out of 946 listings starting at $5,950
2007 Chevrolet TrailBlazer For Sale
55 Great Deals out of 1,071 listings starting at $3,600
2006 Chevrolet TrailBlazer For Sale
32 Great Deals out of 1,056 listings starting at $1,980
2005 Chevrolet TrailBlazer For Sale
37 Great Deals out of 1,029 listings starting at $2,995