what are the possible causes for oil in the radiator

Asked by Sep 03, 2012 at 09:35 AM about the 2000 Chevrolet Astro Extended RWD

Question type: Maintenance & Repair

5 Answers

13,665

Two possibilities.........someone mistakenly added oil to radiator......or your head/ head gasket is bad.

1 of 1 people found this helpful.
36,255

OIL in the RADIATOR is NOT a blown head gasket its mechanically not happenind there. On the other hand it sounds like the radiator has a crack in the oil cooling system. Which is allowing the pressurized oil to transfer inside the radiator. Since its deffinitely not an OHC bc its an astro. Oil travels to the head through the push rods and travels back down by way of gravity through drain holes. There is no area of the head gasket that contacts pressurized oil and if it was contaminating the coolant there then that means a hole big enough to allow oil to freely flow into the coolant jackets would have to be present and if that was the case then there would be a much bigger problem than the present one. I'll bet the coolant used is that garbage orange dexcool $h!t and its turned that nasty dark brown.

36,255

What I'm saying is there may not be an issue other than needing a coolant flush.

1 of 1 people found this helpful.
13,665

Wrong

1 of 1 people found this helpful.

Well i have change the termostat and flush the radiador but now i got oil in the oil pan not radiator? That's it nean i need to replase the heads gaskets?

Your Answer

Astro

Looking for a Used Astro in your area?

CarGurus has 225 nationwide Astro listings starting at $999.

ZIP:

Chevrolet Astro Experts

  • #1
    celica_gt_pimp
    Reputation
    340
  • #1
    Tom Demyan
    Reputation
    340
  • #3
    John Saffrahn
    Reputation
    290
View All

Related Models For Sale

Used GMC Safari
99 listings starting at $2,400
Used Chevrolet Express
72 Great Deals out of 4,872 listings starting at $2,400
Used Chevrolet Express Cargo
79 Great Deals out of 9,296 listings starting at $1,500
Used Chevrolet Tahoe
818 Great Deals out of 39,944 listings starting at $1,900
Used Chevrolet Silverado 1500
2,727 Great Deals out of 156,974 listings starting at $1,000
Used Honda Odyssey
370 Great Deals out of 31,308 listings starting at $1,990
Used GMC Savana
4 Great Deals out of 1,095 listings starting at $4,200
Used Toyota Sienna
334 Great Deals out of 20,274 listings starting at $1,695
Used Dodge Grand Caravan
184 Great Deals out of 34,592 listings starting at $1,500
Used Ford F-150
3,017 Great Deals out of 230,432 listings starting at $1,300
Used Toyota Tacoma
566 Great Deals out of 40,725 listings starting at $2,500
Used Chevrolet Suburban
499 Great Deals out of 23,257 listings starting at $1,995
Used Ford E-Series Cargo
91 Great Deals out of 3,361 listings starting at $2,900

Used Cars For Sale

2005 Chevrolet Astro Extended RWD For Sale
2 listings starting at $7,200
2004 Chevrolet Astro Extended RWD For Sale
6 listings starting at $2,250
2003 Chevrolet Astro Extended RWD For Sale
6 listings starting at $2,995

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.