This is going to be long: I’ve got a 1994 FZJ80. At the beginning of the month, I flushed the coolant, and changed most of the hoses (3 big ones, PHH, heater hoses and heater valve, and the rubber rear heater hoses in the engine bay on the passenger firewall). No issues until last night with coolant leaks.
Yesterday, I changed the valve cover gasket, plugs, wires, dizzy o ring, dizzy cap/rotor, PCV, etc.
I set off on a test drive around the block, and when I got back to the house I noticed the passenger side lower radiator hose was loose at the radiator and dripping coolant. No issue, says I, and I tightened it down. No more leak.
Today, I drove to work. No issues. Ran out to grab some lunch. Returned to work, and noticed a fairly steady dripping of coolant along the inner passenger side frame rail, right near the cats. I figure it’s my rear heater lines finally going out, so I close the heater valve all the way to keep it from dripping excessively. Top off with coolant on my drive home, and see it’s still dripping. Crawl under, and the rear heater lines are dry. I trace the leak back up to behind the small heat shield that sits on the firewall. Pull it off. Nothing super noticeable. Take a closer look, and notice the firewall insulation in the engine bay on the passenger side, is damp with coolant. I check hose connections at the coolant tee, and they’re all dry, including the rear heater hard line that runs down the firewall to the passenger side of the transmission. I also checked the passenger side carpet inside the car. It too, was dry.
Anyone experienced this before? I’m hoping it’s one of the stubby heater hoses leaking on the backside of the hardline (towards the cab), and I just can’t see it. If that’s the case, I’ll just bypass the rear heater.
No noticeable leaks from the rear heater hard lines that sit just above the cats. It hasn’t leaked a drop of coolant until last night. I’m going to go out in a bit and get under there while it’s running to see if I can spot anything.
TIA.
Yesterday, I changed the valve cover gasket, plugs, wires, dizzy o ring, dizzy cap/rotor, PCV, etc.
I set off on a test drive around the block, and when I got back to the house I noticed the passenger side lower radiator hose was loose at the radiator and dripping coolant. No issue, says I, and I tightened it down. No more leak.
Today, I drove to work. No issues. Ran out to grab some lunch. Returned to work, and noticed a fairly steady dripping of coolant along the inner passenger side frame rail, right near the cats. I figure it’s my rear heater lines finally going out, so I close the heater valve all the way to keep it from dripping excessively. Top off with coolant on my drive home, and see it’s still dripping. Crawl under, and the rear heater lines are dry. I trace the leak back up to behind the small heat shield that sits on the firewall. Pull it off. Nothing super noticeable. Take a closer look, and notice the firewall insulation in the engine bay on the passenger side, is damp with coolant. I check hose connections at the coolant tee, and they’re all dry, including the rear heater hard line that runs down the firewall to the passenger side of the transmission. I also checked the passenger side carpet inside the car. It too, was dry.
Anyone experienced this before? I’m hoping it’s one of the stubby heater hoses leaking on the backside of the hardline (towards the cab), and I just can’t see it. If that’s the case, I’ll just bypass the rear heater.
No noticeable leaks from the rear heater hard lines that sit just above the cats. It hasn’t leaked a drop of coolant until last night. I’m going to go out in a bit and get under there while it’s running to see if I can spot anything.
TIA.