My 2000 Caddy Dts is over heating. Yes it has a blown head

QUESTION:
My 2000 Caddy Dts is over heating. Yes it has a blown head gasket no doubt. However I want to solve the overheating problem that blew the gasket. The car overheats in 20 minutes. The upper radiator hose has burst twice. The water pump and thermostat are both new. I don't understand why there is enough pressure to burst the hose but not not venting from the reservoir cap at 16psi. Should the cap blow first before the hose. I feel there is a blockage some where. Can anyone help me with how the coolant flows so maybe i can find the blockage if there is one.

ANSWER:
From what you have stated, the problem would be the radiator cap. The cap should open at 16 psi and since it busted a hose, it had to be over 16 psi which means the cap should have opened up to releave the pressure into the overflow tank.

Engine Cooling System

the clutch pedal stuck down to the floor.

QUESTION:
2004 Mini Cooper S, I started driving and the clutch pedal stuck down to the floor. I could not shift gears. I was able to pull the pedal up with my foot and drive the rest of the day with no problems. Today, it stuck to the floor again and I had to pull over because I could not shift gears. Once again, I could push the pedal back up with my foot and make it home. However, my husband notices something leaking when I pushed the clutch in and out.

ANSWER:
The leak you are seeing when you push the clutch is hydraulic fluid. The clutch is similar to the brake system in that they both require hydraulic pressure to be actuated. A leak such as the one you are seeing will definitely prevent you from being able to shift gears. Check the fluid level in the clutch reservoir which is under the hood close to the fire wall. If the fluid is low, you need to find out where the leak is coming from. The leak will either come from the clutch reservoir, the clutch cylinder which is attached to the pedal on the engine side of the fire wall, the slave cylinder which is in the transmission bell housing, or one of the lines that connects these components.

duel zone AC and the driver side does not blow cold air but my pass side does

QUESTION:
I have a 2002 Chevy Monte Carlo SS 3.8v6. My duel zone AC and the driver side does not blow cold air but my pass side does

ANSWER:
It sounds like you blend door is sticking in the heat mode. It should close and a lot times it stays open and this will not let the ac come through. To replace this door the dash has to come out. It is part of the case the holds everything together.

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replaced ac compressor and accumulator, converted to 134A, still no cold air

'89 F150 - replaced ac compressor and accumulator, converted to 134A, still no cold air. I think I need to replace orifice tube or expansion valve after following up a bit more. (Haynes book isn't the most comprehensive of course.) If I'm on the right track, I believe I have one or the other, not both. And I understand I may have a "blue tube" or "red tube" orifice. (I believe that's what my system has, not expansion valve??) If I do have an expansion valve, where is it located?? If orifice tube, which one?? It's a 4x4 with a 5.8l motor, auto trans.,XLT Lariat (if that matters). Appreciate any help you can offer. I guess I should break down and get a real shop manual.

ANSWER:
Have you checked pressure low and high,it will let you know if you are having a blockage,due to debris clogging the orifice tube screen. This is a common problem when a compressor fails You have no expansion valve, the orifice is in the Evaporator inlet, to get it you must discharge the system and disconnect the line. You can switch to the blue orifice or get a variable orifice tube . You then need to evacuate the system with a vacuum pump,and charge to 80% of what is stated on the label for freon capacity when it used with R12.Here is a chart that shows the pressure readings you should have.If you have a blockage,the low side will be low and the high side higher than normal. Hope you get it fixed,it sounds like the orifice is the problem,here is a link that shows what it may look like,and how to go about fixing it, you may have to copy and paste to your browser http://www.ackits.com/merchant.mvc?Screen=CTGY&Store_Code=01&Category_Code=BlackDeath

when i start my car there is a ratteling

Question:
every now and again when i start my car there is a rattling noise coming from my engine could you tell me what this means plz

ANSWER:
99% of the time this turns out to be the catalytic converter. Either the heat shield have come apart at one of its welded corners or the inside of the converter is loose. Let it cool down before touching. You can bang on the side of it to see if anything rattles inside.

Low Engine Oil Light came on when I started my car this morning

QUESTION:
I have a 2000 Monte Carlo SS, 92K miles. I change the oil regularly between 3K - 4K miles. I check the oil three to four times in that interval. I have never had to add oil. I have never noticed leak spots under the car. This morning, when I started the car the Low Engine Oil Light came on. I shut it off, checked the oil and it was low. I re-started the engine and the light did not come back on. What's up with this?

ANSWER:
Either you have a new leak or the oil change place did not completely fill the oil. Sometimes the low oil light will come on when the oil is not low, this would indicate a faulty oil level sensor.