2003 Toyota Tacoma TRD Dbl Cab 4x4 SB. Small Coolant Leak from Overflow Bottle. Engine doesn't overheat or Temperature Gauge go past midway. Doesn't leak when driving/idling, ONLY after being driven

Asked by Sep 07, 2015 at 05:35 PM about the 2003 Toyota Tacoma V6 4WD Crew Cab SB

Question type: Maintenance & Repair

Sits a few minutes, then a
6" puddle under Resevoir
Bottle on driveway shows
up. I used Blue Devil Head
Gasket Sealer, it's
guaranteed to be a
permanent fix.  All was
fine but started leaking
again!   Wondering if
Gasket was fine but,
Radiator is blocked or bad
Water Pump. NOT leaking
from weep hole in Water
Pump. I don't think
Coolant is circulating
properly as top hose is
weak when I squeeze it.
Not a good surge at all!!  I
can get a NEW Aluminum
Radiator for $70.00.  Has
anyone else had this
problem besides me??
195,000 mi. on Tacoma,
GREAT looking, Runs
GREAT. Just leaks a little
& driving me crazy!!!   
Please help!!

2 Answers

Could be as simple as the radiator cap, since you can drive all day then only leaks when shut off. The cooling radiator creates a vacuum to pull coolant from reservoir. If the cap is bad, it will spill out, or even just the hose fallen off between radiator and reservoir. But 'Blue Devil' is the only one the guarantees a 'permanent fix' for a head gasket. Sorry Doug, there is no magic potion in a bottle the will fix a blown head gasket, IF that is what's wrong. That crap is what is plugging up everything, think - a chemical goop circulating through you engine looking for holes to plug. Small water jacket passages, could have gummed up your thermostat.

1 of 1 people found this helpful.

Currently running NO Thermostat as Coolant will not circulate at all when it's in. Top hose will be scalding hot, bottom hose cool as can be!! Blue Devil is a liquid, NO chunks or "Goop" in it. I've watched the videos on YouTube and it seems to work magic on MAJOR Head Gasket leaks, warpage, even cracked blocks! Seriously, check it out on YouTube!! I can drive my Tacoma 100+ miles and it runs great. Pull in my driveway, open Radiator Cap and there is NO vacuum at all present! It sits for 3 - 5 minutes and there will be approx. a 1/2 cup of Coolant directly under the overflow tank. I got rear - ended a year ago and hit the SUV in front of me, smashed the rear AND front of my truck. $7,000+ in damage to my Tacoma!! I was looking the other night and the fins on the back of my Radiator are about 60% smashed flat due to hitting the fan in the wreck. They didn't replace my Radiator with new, only replaced AC Condenser. Personally, I am thinking Radiator, Water Pump, Timing Belt needing replaced. I'm @ 195,000+ miles now. S'posed to idle @ 650 rpm's but, it is now @ 500 rpm's. SO, I KNOW Timing Belt/Water Pump needs done. Wondering IF Head Gasket is fine, other parts are at fault? I am a decent mechanic and I believe it is running too damn good right now to be Head Gasket!! ALSO, when it was hot I pulled all Spark Plugs out and ALL are equally "dirty" but, they only have 4 - 5,000 miles on them. NO water/Coolant in oil or beads on dipstick, NO water/white "cream" on oil cap at all. I'm gonna replace Timing Belt, Tensioner, Water Pump as needed at current mileage. Going to also replace Radiator as I can get a new one for $70.00 and HOPE I fix the problem!! I'm Permanently Disabled, can't afford to pay $1,200 - $1,800.00 to have someone do my Head Gasket and it NOT be the problem but, I CAN afford the other parts and taking my time I can do the work myself. I don't have a garage at home but if I did, I could do the Head Gasket, IF needed! Also, the Thermostat I pulled out was a low dollar JUNK part. Gonna buy an OEM off eBay and see if that helps. Could just be simple fix. I've seen bad Thermostats new right out of the box in the past!! I appreciate ANY and ALL help and advice and THANK YOU!!!! Doug

Your Answer

Toyota Tacoma Experts

  • #1
    Tom Demyan
    Reputation
    1,070
  • #2
    genxer36
    Reputation
    340
  • #2
    BURT100
    Reputation
    340
View All

Related Models For Sale

Used Toyota Tundra
495 Great Deals out of 33,973 listings starting at $2,000
Used Nissan Frontier
355 Great Deals out of 23,455 listings starting at $2,495
Used Ford F-150
2,575 Great Deals out of 199,191 listings starting at $1,300
Used Chevrolet Silverado 1500
2,289 Great Deals out of 169,683 listings starting at $1,000
Used Toyota 4Runner
275 Great Deals out of 23,479 listings starting at $2,300
Used Chevrolet Colorado
280 Great Deals out of 34,538 listings starting at $1,900
Used GMC Sierra 1500
1,014 Great Deals out of 66,363 listings starting at $2,495
Used Ford Ranger
146 Great Deals out of 5,428 listings starting at $800
Used Jeep Wrangler
335 Great Deals out of 17,476 listings starting at $2,995
Used Dodge Ram 1500
366 Great Deals out of 10,821 listings starting at $1,500
Used GMC Canyon
146 Great Deals out of 14,467 listings starting at $3,000
Used Nissan Titan
212 Great Deals out of 20,824 listings starting at $3,390
Used Toyota Camry
941 Great Deals out of 82,535 listings starting at $999

Used Cars For Sale

2017 Toyota Tacoma For Sale
31 Great Deals out of 27,237 listings starting at $14,995
2016 Toyota Tacoma For Sale
78 Great Deals out of 2,902 listings starting at $18,500
2015 Toyota Tacoma For Sale
96 Great Deals out of 3,189 listings starting at $12,999
2014 Toyota Tacoma For Sale
58 Great Deals out of 2,056 listings starting at $8,950
2013 Toyota Tacoma For Sale
79 Great Deals out of 2,175 listings starting at $6,900

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.