Question about 2000 Mazda MPV

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Why does the coolant pipe crimp up when you stop the engine

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Its possible the hose may be old or of bad quality. Also the radiator cap may need to be changed as well.

Posted on Jun 06, 2009

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I have a 95 BMW 740i V8. When ever i srep on the gas to accelerate faster than gently the car blows alot of white smoke until some seconds after the acceleration ends. The smoke is obviously coming from...


White smoke means a coolant leak, check it and repair before to overheating your engine.

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ENGINE COOLANT TEMPERATURE SENSOR LOCATED IN ENGINE COOLANT PIPE LEADING FROM THE FRONT OF THE ENGINE WHERE YOU WILL SEE 2 SMALL COOLANT HOSES CONNECT TO COOLANT PIPE.THERMOSTAT IS IN THE COOLANT PIPE YOU WILL SEE WIRE CONNECTOR PLUG INTO ECT SENSOR.

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REPLACE THERMOSTAT.MAKE SURE COOLANT SUPPLY PIPE OR COOLANT RETURN PIPE NOT STOPPED UP AND YOU HAVE ENOUGH COOLANT IN THE SYSTEM.REPLACE THERMOSTAT.CRANK ENGINE UP AND LET IDLE UNTIL WARM UP KEEP EYES ON TEMPERATURE GAUGE. WHEN ENGINE THERMOSTAT OPEN COOLANT HOSE SHOULD BE HOT.IF NOT TURN OFF ENGINE.USE LARGE RAG WAIT A WHILE BEFORE REMOVING RADIATOR CAP CHECK TO SEE IF COOLANT LEVEL DROPPING IF SO ADD MORE COOLANT.CRANK ENGINE UP UNTIL THERMOSTAT OPENS UP.HOSE WILL GET HOT.IF STILL COLD CHECK COOLANT LEVEL.ONCE YOU AIR OUT COOLANT SYSTEM RADIATOR HOSES WILL GET HOT SO YOU WILL GET HEAT.IF COOLANT LOW YOU WONT GET NO HEAT.

Jan 09, 2011 | Audi A4 Cars & Trucks

1 Answer

How do i replace the water thmostat 99 6 cylider


WELL YOU NEED TO DRAIN COOLANT LEVEL BELOW THERMOSTAT LEVEL.YOU HAVE TO DISCONNECT MAF SENSOR LOOSEN AIRDUCT 2 LARGE CLAMPS LOOSEN REMOVE 4 SCREWS TO AIR FILTER COVER LIFT UP REMOVE COVER. THEN REMOVE AIR FILTER AND HOUSING, FIRST DISCONNECT MAF SENSOR.YOU HAVE TO DISCONNECT THROTTLE CABLE AND SHIFT CABLE.YOU HAVE TO DISCONNECT REMOVE THROTTLE BODY COOLANT HOSES DISCONNECT IDLE SPEED CONTROL VALVE CONNECTOR AND DISCONNECT TPS SENSOR CONNECTOR. THEN REMOVE THROTTLE BODY ASSEMBLY. YOU NEED TO BUY NEW THROTTLE BODY COOLANT HOSES AND NEW THROTTLE BODY GASKET FOLLOW TOP COOLANT HOSE TO ENGINE BLOCK.NOW YOU SEE CAN AND REMOVE THE THERMOSTAT HOUSING REPLACE THE THERMOSTAT.BESURE TO HAVE EXTRA COOLANT ON HAND.BLEED COOLANT SYSTEM WHEN DONE.TO BLEED COOLANT SYSTEM REMOVE RADIATOR CAP ON OVERFLOW JUG.THEN OPEN BLEED SCREW ON THE WATER PUMP BYPASS HOSE PIPE JUST A LITTLE.POUR COOLANT IN THE OVERFLOW JUG UNTIL LEVEL STOP DROPPING.STOP AT COLD MARK ON JUG.CLOSE BLEEDER SCREW ON WATER PUMP BYPASS HOSE PIPE.CRANK VECHICLE CHECK FOR LEAKS. START UP ENGINE LET IDLE FEW MINUTES THEN CHECK COOLANT LEVEL ADD MORE UNTIL UNTIL LEVEL STOP DROPPING.PUT RADIATOR CAP BACK ON OVERFLOW RESERVOIR. LET ENGINE IDLE WATCH COOLANT TEMPERATURE GAUGE.WHEN GAUGE START CLIMBING. TURN OFF ENGINE WAIT FEW MINUTES TAKE A LARGE RAG OPEN RADIATOR JUST A LITTLE YOU HEAR HISS NOISE.WHEN PRESSURE STABILIZE DONT GET SCALDED BECAREFUL.OPEN CAP LITTLE MORE.IF COOLANT PRESSURE STILL BOILS OUT WAIT 20 MINUTES ADD MORE COOLANT TO RADIATOR OVER FLOW WHEN COOLANT LEVEL STOP DROPPING.PUT RADIATOR CAP BACK ON START VECHICLE UP LET IDLE UNTIL THERMOSTAT OPEN. THEN FEEL TOP RADIATOR HOSE FEELS HOT THERMOSTAT OPEN WATCH TEMPERATURE GAUGE.IF GAUGE TEMP START CLIMBING TURN OFF ENGINE WAIT A WHILE.CHECK AND ADD MORE COOLANT.WHEN THE ENGINE CAN IDLE TEMP GAUGE STOP CLIMBING YOU HAVE BLEED COOLANT SYSTEM.KEEP CHECK ON COOLANT LEVEL.

Dec 29, 2010 | 1999 Oldsmobile Alero

1 Answer

How to change water pump on 1999 alero 2.4 liter twin cam


REPLACE WATER PUMP ON A 1999 OLDSMOBILE ALERO. FIRST YOU HAVE TO DRAIN COOLANT SYSTEM IN A LARGE DRAIN. RADIATOR DRAIN PLUG SHOULD BE ON THE BOTTOM ON PASSENGER SIDE. THEN RAISE THE VECHICLE SUPPORT VECHICLE WITH JACKSTANDS. REMOVE THE EXHAUST MANIFOLD FROM THE ENGINE. CAUTION DO NOT ROTATE THE FLEX COUPLING ON THE FRONT EXHAUST PIPE MORE THAN 4 DEGREE OR DAMAGE TO THE FLEX COUPLING MAY OCCUR. REMOVE THE THERMOSTAT AND THE COOLANT INLET PIPE FROM THE WATER PUMP HOUSING AND SEPARATE THE ASSEMBLY FROM THE ENGINE. LOWER THE VECHICLE REMOVE THE BRAKE BOOSTER VACUUM HOSE FROM THE CAMSHAFT HOUSING. REMOVE THE FRONT TIMING CHAIN COVER AND THE TIMING CHAIN TENSIONER FROM THE ENGINE. CAUTION THE TIMING CHAIN TENSIONER MUST BE REMOVED TO UNLOAD CHAIN TENSION BEFORE REMOVING THE WATER PUMP FROM THE HOUSING OTHERWISE THE WATER PUMP WILL BECOME JAMMED IN THE TIMING CHAIN HOUSING. REMOVE THE HEATER OUTLET PIPE FROM THE WATER PUMP COVER. REMOVE THE WATER PUMP COVER BOLTS FROM THE ENGINE BLOCK AND THE WATER PUMP. REMOVE WATER PUMP RETAINING NUTS AND SEPARATE THE WATER PUMP FROM THE TIMING CHAIN HOUSING. CLEAN THE SEALING SURFACES OF ALL GASKET MATERIAL ON THE WATER PUMP, WATER PUMP COVER AND THE TIMING CHAIN HOUSING. WIPE THE MATING SURFACES WITH A RAG SATURATED LACQUER THINNER OR ACETONE. YOU CAN BUY THESE CHEMICAL AT LOWES OR WALMART DEPARTMENT WHERE THEY SELL PAINTS. FIRST INSTALL THE WATER PUMP COVER AND GASKET TO THE WATER PUMP ON THE BENCH BUT LEAVE THE BOLTS FINGER TIGHT. APPLY A THIN LAYER OF RTV SEALANT TO BOTH SIDES OF THE NEW GASKET AND INSTALL THE GASKET ON THE WATER PUMP. WAIT FOR RTV SEALANT SET UP DRY FIRST. POSITION WATER PUMP AND WATER PUMP COVER ASSEMBLY INTO TIMING CHAIN HOUSING ENGAGING THE WATER PUMP SPROCKET IN THE TIMING CHAIN, AND INSTALL THE NUTS FINGER TIGHT. USE CAUTION TO ENSURE THAT THE GASKET DOESNT SLIP OUT OF POSITION. LEAVE THE NUTS LOOSE TO ALLOW REPOSITIONING WHEN THE BLOCK BOLTS ARE INSTALLED IN THE NEXT STEP. INSTALL THE WATER PUMP COVER TO ENGINE BLOCK BOLTS AND TIGHTEN THEM BY HAND. LUBRICATE THE O - RING ON THE HEATER OUTLET PIPE WITH COOLANT AND INSTALL IT INTO THE WATER PUMP COVER. HAND TIGHTEN THE BOLTS. NOW THAT THE ENTIRE WATER PUMP HOUSING ASSEMBLY IS INSTALLED AND IS FITTED AGAINST THE ENGINE BLOCK. TIGHTEN BOLTS CRISS CROSS SEQUENCE TO INSURE PROPER SEAL TORQUE WATER PUMP TO TIMING CHAIN HOUSING NUTS TO 19 FT LBS .NOW TORQUE WATER PUMP COVER TO WATER PUMP HOUSING BOLTS TO 124 INCH POUNDS. TORQUE WATER PUMP COVER TO ENGINE BLOCK BOLTS 19 FT LBS. TORQUE 124 INCH POUNDS THE RADIATOR OUTLET PIPE TO WATER PUMP HOUSING. INSTALL THE TIMING CHAIN TENSIONER AND COVER. INSTALL THE EXHAUST MANIFOLD. INSTALL THE EXHAUST PIPE TO THE EXHAUST MANIFOLD. WHEN ALL IS DONE. START POURING COOLANT IN THE RADIATOR OR COOLANT OVER FLOW JUG.CHECK FOR LEAKS. IF IS GOOD KEEP ADDING COOLANT TO RADIATOR OR OVER FLOW RESERVOIR UNTIL COOLANT LEVEL STOP DROPPING. NOW START ENGINE. WATCH THE COOLANT LEVEL WHEN START DROPPING ADD MORE COOLANT IN RADIATOR OR OVERFLOW JUG. WHEN COOLANT STOP DROPPING INSTALL RADIATOR CAP OR OVERFLOW JUG CAP. LET ENGINE IDLE UNTIL THERMOSTAT OPENS WATCH TEMPERATURE GAUGE WHEN TEMPERATURE GAUGE RISING TO OVERHEATING. TURN OFF ENGINE WAIT A WHILE TAKE A LARGE RAG SLOWLY OPEN RADIATOR CAP A LITTLE TO RELEASE PRESSURE. WHEN PRESSURE RELEASE REMOVE RADIATOR CAP ADD MORE COOLANT. START ENGINE LET IDLE WATCH TEMP GAUGE. TEMP GAUGE START RISING AGAIN TURN OFF ENGINE LET IT SET A WHILE ADD MORE COOLANT. TO RADIATOR. WHEN ENGINE TEMPERATURE GAUGE STOP RISING AND THERMOSTAT OPENS YOUR COOLANT SYSTEM AIR IS BLED OUT. JUST LET VECHICLE SET A LITTLE CHECK COOLANT LEVEL MAKE ITS CORRECT BEFORE START DRIVING VECHICLE. IF YOU TAKE VECHICLE FOR TEST SPIN TAKE LARGE RAG AND PLENTY COOLANT WITH YOU.IF ENGINE START OVERHEATING WHILE DRIVING PULL OFF ROAD SAFELY WAIT 20 TO 30 MINUTES. USE LARGE RAG SLOWLY OPEN CAP A LITTLE RELEASE PRESSURE. THEN REMOVE RADIATOR CAP ADD MORE COOLANT IF NEEDED. HOPE THIS HELP.

Dec 10, 2010 | 1999 Oldsmobile Alero

1 Answer

Need to add coolant to my bmw 750li. What type and in what ratio should I mix with water?


Hello,


I am writing to tell you about a new BREAKTHROUGH method for repairing a leaking Coolant Transfer Pipe in the BMW N62 V8 engine block using the BimmerFix Stint. The N62 V8 is a popular BMW engine that was used from 2002 thru 2010, in such fabulous vehicles as the BMW 735i, 740i, 745i, 750i & Li, 645Ci, 650i, 540i, 545i, 550i, and the X5 SUV.


Located deep inside of this BMW N62 engine is a Coolant Transfer Pipe, which carries antifreeze from the Water Pump to cooling chambers within the engine. However, the Front Seal on this Cooling Tube can fail in as little as 40,000 miles, and start leaking antifreeze from the engine block, through a weep hole in the Timing Chain Cover. When this happens, the car will lose antifreeze from the engine, and the engine will overheat.


In the past, this has been a very expensive repair because it required disassembly of the engine, in order to access the leaking Cooling Pipe Seal. The original method of replacing the crossover Coolant Transfer Pipe required the removal of the Timing Chain Cover. This repair could cost $6,000 or more at the BMW Dealer.


Then, an after-market Collapsible Coolant Pipe was developed to save time and money on this repair. This Collapsible Coolant Pipe method involves removing the Intake Manifold, cutting out the old Coolant Pipe and installing the after-market Collapsible Coolant Pipe. But even this method required many hours of shop labor and expensive parts and supplies. The repair bill for this method can still cost between $1,500.00 and $2,500.00 to remove the Intake Manifold, cut out the old Coolant Pipe and install the new Collapsible Coolant Pipe.


However, BimmerFix Products Co. has discovered a BREAKTHROUGH system to stop the leak! The BimmerFix method is much faster and less expensive than these old methods. This simple, yet durable and long lasting method inserts the BimmerFix Stint into the leaking crossover cooling tube, through the Timing Chain Cover. The thin aluminum sleeve creates a long lasting repair that is much easier and less expensive to install than the old repair methods.


The new BimmerFix Stint will stop the Coolant Pipe leak, and only requires the removal of the Water Pump. This new patent protected invention can save YOU or your customer's time, hassle, and thousands of dollars. It works or your money back!


Save time and money! Take a look at www.BimmerFix.com.


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Sep 24, 2010 | 2006 BMW 750Li

3 Answers

Bmw 745i 2003 water leaks out from front of motor and it's not the water pump or any hoses , I changed water pump and gaskets. the water flows out as soon as I fill tank,it's behind the crank pully


I had this same problem in my 02 745i... It's leaking from the internal coolant pipe... a $.05 rubber ring is going to cost you 3-5k easily.

Jan 26, 2010 | 2004 BMW 7 Series

4 Answers

2003 4.4 x5 engine coolant light


@01fordeb: You have to assume the system is dyed before a black light is useful.
Black light dyes are available [cheap] at any parts store.

asker: You may find that the coolant level sensor is defective, covered with gunk or that there is some static electricity built up in the coolant. A mechanic should know how to check for stray current. Also, it may be that a little fluid is going out the overflow because the wrong strength of radiator cap is on there, or the spring is worn out. Replacements are available at any parts store.

HOPE THIS HELPS! Don't forget to rat, please.

Jan 09, 2010 | 2003 BMW 5 Series

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