When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I put a stock 99 LQ4 into my 1972 chevelle. Everything seemed fine until I let it run to get it up to temp. I noticed the top hose was getting hot while the lower hose was cool. The top radiator hose fitting was bubbling where it is pressed in. I went to shut the vehicle off and....BOOM! It blew the fitting out. Not sure what is going on. Any help would be appreciated!
Yikes! Never heard or seen that before. Is maybe there a blockage on the coolant circuit perhaps? I wouldn't think the water pump would create that much pressure to cause the tube to blow off. And maybe the tube was also defective? Who knows?
Yeah that's just a defective part, pure and simple. NO WAY pressure would be able to do that, without FIRST exploding the rad hoses. Since those clearly didn't explode, there wasn't ANYWHERE NEAR enough pressure to cause that.
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.
LQ4 water pump issue 
