Messages

1

Engine + Driveline / Re: New here. M42 Overheating

« on: May 31, 2014, 11:00:34 AM »

Does no pressure in either of the hoses going to the thermostat housing indicates a closed thermostat? Is it worth trying to bleed again, or should I just get to pulling the thermostat?

2

Engine + Driveline / Re: New here. M42 Overheating

« on: May 30, 2014, 04:02:29 PM »

Car's not going any further than a few hundred feet from my house until this gets solved. I "newspaper tested" the clutch fan, seems good. Is the aux fan the one that's visible through the lower front valence? I don't think that works, but the a/c compressor doesn't have the belt on it, if that matters. Tried bleeding the system with the nose jacked up, no bubbles or fluid comes out of the bleeder screw. There is no fluid going through either of the upper radiator hoses. Is this indicative of a busted water pump or thermostat?

Stomp test showed code 1252, some problem with fuel injectors.

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Engine + Driveline / New here. M42 Overheating

« on: May 30, 2014, 12:49:23 PM »

Posted on r3v as well.

Hey all, brought home a '91 318iS a few days ago. Car ran fine when I test drove it a few days prior to that, but on the way home, the temp gauge climbed into the red. Let it cool off for a bit, then kept going, but blew the upper heater hose that goes from the firewall into the engine block.

Replaced that, but the car still overheats within about 15 minutes of idling, less when driving it slowly around the block.

There's no heat out of the vents with the heat knob turned all the way up. Fan doesn't seem to blow either when turned all the way up, all vents open, all sliders to the right.

Upper and lower radiator hoses don't feel like there's any pressure in them. Doesn't seem to be leaking anywhere else.

Checked the oil cap and dipstick for milkshake, oil's dirty but otherwise fine. No white smoke out the exhaust.

Car starts up, idles, and drives just fine, I shut it off when the temp gauge climbs past the 3/4 mark.

What are the possible culprits? Busted water pump, busted thermostat, clogged hose somewhere, clogged heater core/valve/radiator? Shitty bleed job?

Lower radiator hose on the driver side appears to be leaking now.

Car also smells rich on startup, and has slight idle fluctuation. Fuel pump sounds kind of loud, can hear it buzzing from outside the car.