'01 Kia Sportage - head gasket : (
Couple of months ago, did a compression test, & 1 cylinder shows 50%, the other three 60-80%. New plugs. Car is running fine, but we try Wal-Mart's head gasket sealer for grins & giggles.
3 weeks ago, get Sportage back from small-shop mechanic who was supposed to do all sorts of work, did do a compression test - came up normal, kept it for 3 weeks, and didn't do much else. Car runs ok, but A/C starts working intermittently. Friday, I crack the hood open, run the engine, add two large? bottles of R-134A to low side of A/C system. A/C now works well.
While under the hood, I noticed a 1.5-2" hose from the air intake that runs to a box on the driver's side of the engine compartment, before the intake runs into the air cleaner box. The hose was disconnected. I reconnected it, but then had problems starting the engine. The check engine light comes on that night. We figure that the mechanic disconnected the hose b/c it ran better w/o it, so I planned to disconnect it the next time I got under the hood.
Sunday morning, it was difficult to start, & died @ a light a few blocks away. Got on the highway, then realized we'd forgotten the Mother's Day gift. Headed back for the house, then realized the engine temp was @ the top of the scale. Turned off the A/C, crept along home, parked it, & popped the hood.
The cap on the radiator overflow tank was off, & steaming. I had not noticed the tank two days before, as we'd had no problems w/ the radiator. I filled the overflow tank, put the cap back on, restarted the engine, & ran it for a minute or two. Then we hopped into the other vehicle & left for Mother's Day.
Sunday evening, I pop the now cold radiator cap off, start the car & drive it over to the hose. Green coolant is spewed around the engine compartment. I fill the radiator from the hose, but it's almost full. I run the A/C & keep the engine around 2000 rpm 'til the thermostat opens up, & sucks down the radiator. Steam comes out. I fill the radiator from the hose, then kill the engine & put the radiator cap back on. Then I go to start it. White smoke comes out the back, no start.
This morning, after cranking for 30 seconds or so, I get it started, keep the RPMs high, & am able to drive the car over to its probable final resting place. A cloud of white smoke hangs behind the car.
So - have I blown the head gasket, or cracked the block? Powertrain is the 4 cyl, rear-wheel 3-spd auto.