Blown radiator hose and now no start (1 Viewer)

[TioCoyote]

'99 LX470

Late last week I was on the way to work and heard a pop. I didn't see any change to the temp gage but pulled over anyway to see what the issue was. As soon as I stopped to turn the truck died. It struggled to restart and I got it into a parking lot. I discovered that the lower radiator hose had burst and coolant was everywhere.

I saw there was still coolant in the overflow reservoir so I taped the hose and tried to limp home. I made it a couple miles and the same thing happened again so I got it towed.

I've replaced the hose, thermostat, and drained the coolant. I went ahead and drained the oil to check for coolant and found none. Both have been refilled, etc.

Now the truck won't start, the starter sounds like it's spinning but there's no combustion. I noticed the ground cable is hot after trying to start so I'm hoping for a short somewhere.

Any suggestions on what to check first?

I plan on checking relays, etc, first thing tomorrow.

 

[OEMGUY0720]

The lower radiator hose is close to your alternator, and when it popped there’s a good chance it got soaked (and probably still is) knowing that glycol which is a main ingredient of anti-freeze doesn’t evaporate quickly. That said I would say check your alternator if it’s wet with antifreeze.

 

[vipergrhd]

Pull all the plugs and check compression. Before that is pull a plug and coil and see for sparks if that's ok do a compression test.

 

[TioCoyote]

Pull all the plugs and check compression. Before that is pull a plug and coil and see for sparks if that's ok do a compression test.

Pulled a plug and got spark, I've got a buddy who is loaning me a compression tester so that will be the next step

 

[Bisho]

When the lower hose blew you lost ALL of your coolant, except the quart in the reservoir. Think about it, you essentially knocked a hole in the bottom of a cup. The residual left in your curly straw is not an indicator there is anything left in the system.

When you restarted it most likely overheated very quickly, and your temp gauge won’t show you because there isn’t coolant to conduct the heat. I hope I’m wrong, but you most likely trashed the motor.

 

[TioCoyote]

When the lower hose blew you lost ALL of your coolant, except the quart in the reservoir. Think about it, you essentially knocked a hole in the bottom of a cup. The residual left in your curly straw is not an indicator there is anything left in the system.

When you restarted it most likely overheated very quickly, and your temp gauge won’t show you because there isn’t coolant to conduct the heat. I hope I’m wrong, but you most likely trashed the motor.

That's definitely what I'm scared of. I drained a gallon or more of fluid out of the radiator when I got it home, haven't drained the block yet. I'm honestly glad to see anything coming out.

Tomorrow I'm planning on draining the block and pulling plugs for the compression test.