Radiator cap boiling over

Asked by May 16, 2016 at 08:43 PM about the 2002 Dodge Ram 1500 SLT LB 4WD

Question type: Maintenance & Repair

I got to work today and got out of my truck
and I heard something sizzling under the
hood. I popped the hood and Coolent was
boiling out of the Coolent reservoir with the
cap still on it. I also noticed that the
reservoir was swelling up and as the motor
cooled the swelling went back down and
Coolent went back into the motor. Any
ideas what's wrong?

2 Answers

235

First check is obvious, that is to make sure your engine is not running hot (over-heating). Check temp. gauge. Sounds like it could be a sticky thermostate. Check if you have heat. If you have no heat, it could mean that the thermostate is sticking, or the water pump is shot. Squeeze upper and lower radiator hoses, and feel for swiching noise, and a tempeture difference.

1 people found this helpful.

Gauges all good. Will check hoses in the morning. Thanks for the advice

Your Answer:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    7,040
  • #2
    pudgybear
    Reputation
    6,680
  • #3
    dandyoun
    Reputation
    6,260
View All

Related Models For Sale

Used Ford F-150
2,230 Great Deals out of 209,289 listings starting at $1,300
Used Chevrolet Silverado 1500
1,755 Great Deals out of 153,117 listings starting at $1,000
Used Dodge Ram 2500
155 Great Deals out of 4,838 listings starting at $2,200
Used GMC Sierra 1500
698 Great Deals out of 60,847 listings starting at $1,395
Used Toyota Tundra
455 Great Deals out of 39,339 listings starting at $2,700
Used Toyota Tacoma
405 Great Deals out of 47,514 listings starting at $2,994
Used Ford F-250 Super Duty
487 Great Deals out of 40,366 listings starting at $2,800
Used Dodge Dakota
80 Great Deals out of 3,053 listings starting at $1,495
Used Ford Mustang
273 Great Deals out of 37,583 listings starting at $1,350
Used Chevrolet Silverado 2500HD
378 Great Deals out of 30,126 listings starting at $2,750

Used Cars For Sale

2008 Dodge Ram 1500 SLT LB 4WD For Sale
7 listings starting at $11,495
2007 Dodge Ram 1500 SLT LB 4WD For Sale
2 listings starting at $9,325
2006 Dodge Ram 1500 SLT LB 4WD For Sale
7 listings starting at $4,960

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.