Recent content by 4thTRDRunner

Hey all! My cousin has a new-to-him 4th gen. 2007, 4.0, 4wd, 265k miles. He switched it into 4WH and can't seem to get it back out. The rear differential is activated also. He has tried everything we can think of, driving on rocky surface, curvy roads, putting it in reverse, neutral, all of...

Update - STILL running great at 230k (knock on a tree!) Hey all, I recently bought a 2008 UrbanRunner & am getting back into the site! So I just wanted to give another update on my brother's 2005. The beast is currently sitting at 230,048 & running great! It still has prestone green coolant in...

(knock on wood) everything is still working great at 198k miles Hey everyone, just a quick update on the 4th gen: I decided to get a newer car and my younger brother received the 4th gen. It currently has 198k miles on it and hasn't missed a beat so far. I got to drive it the other day for the...

Blue Devil Head Gasket Sealer

I explain everything in more detail in my thread. Basically the only thing I could note that was consistently telling me HG leak was the sound of rushing water behind the dash. This has stopped since I used HG sealer. When it comes back, I'll know.

I used Blue Devil HG sealer around 2 weeks ago (500 miles) and haven't experienced a problem since. My 4Runner wasn't overheating or having a problems at all, but a leak down test by a mechanic confirmed HG leak. I created a thread on here to document my process and keep tabs on how long it...

Prestone green coolant update To comment on the use of prestone green on my 4Runner: After doing research on coolant types and checking my owners manual, it recommends ethylene glycol based coolant. The manual does not specify what kind, and from the research I've done, the type of Prestone I...

1 Week Update After 1 week I am experiencing zero issues. Roughly 350 miles traveled so far. Rushing water noise has stopped and no CEL or shakes on startup. Also, I have consistently been checking the radiator and the fluid level has remained the same for the week.

Could you give me some insight on the actual differences between coolants and how it can affect my engine?

Maybe! Guess we will see! Thanks for the words of wisdom

If that is the case, I'll definitely make a post to let you all know how it affected my engine. This thread was created to help people in similar situations by providing info on my experience. I am not recommending anyone recreate my scenario, just trying to provide info. Thanks for the comment...

Hello all! If you're finding this thread for information on head gasket sealers, I sincerely feel your pain in finding out about your head gasket leak. Or if you just want to see whether or not head gasket sealers actually work, well, you might just be able to find out! I'm making this thread...

I will be having it looked at by a mechanic this Friday. If the test is positive, I am going to attempt to use some head gasket sealer, from the reviews I've seen probably blue devil. I will likely get a used engine rather than change the head gaskets if that doesn't work. Will update soon.

They haven’t changed. I remember having shaking at startup three different times. Twice in the morning, and once after about 30 minutes of sitting at night when I had to take a quick drive to grocery. I still let it sit overnight and drive it every morning. Engine light came on about 10 minutes...

Update: the check engine light went away a couple days ago. No rough start, waterfall sounds. Not really sure why. Haven’t noticed any loss of coolant either. I am not sure what to think. I feel like if it is a head gasket it would leak constantly and only get worse, not better? Anyone have any...