Question about Honda Prelude

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I have a 89 honda prelude with a 2.0 and it has a coolant leak where the lower radiator coonects to a metal tube near the block i was wondering if that part was part of the block or if it was removable and if so what is that part called thanks

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Yes the water neck. it can be replaced. but you need to get it from the dealer

Posted on Jul 12, 2009


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Coolant leak between engine and trans lower portion near oil pan do any coolant tubes or hose run in that area from water pump to radiator

There are cylinder block core cleanout casting plugs back there, one or more could be rusted out. Also make sure the coolant is not coming from up top like at the rear of intake manifold.

May 09, 2016 | Cars & Trucks

1 Answer

Where is the freeze plug on 1990 Honda prelude si 4ws 2.1 vtec

freeze plugs are located along the block on any engine. it's a indented circle piece of metal that is press fit into the block along the water jacket so that it ill bust if the coolant freezes rather than busting your block. they usually rust rather than bust

Nov 15, 2011 | 1990 Honda Prelude

1 Answer

I have an 89 honda prelude when engine warms up a blinking warning light appears. It is the same light that appears when my speedometer stops working. Can you tell me what it is trying to tell me? thank...

It sounds tempature related I would check the engine coolant tempature sensor Its going to be near the upper radiator hose where it attaches to the engine block a false reading from this sensor could screw up other systems abiblty to give correct readings to the vehicle control system and cause a lot of unasual unrelated problems to acure If you can i would seggest that you take it to an auto parts store most will read the codes for free although you have what is called an OBD 1 SYSTEM on board dianostic system OBD 11 is the newer system its likely a sensor and you will likely be able to fix it for under 50 dollars mabey 20 Good luck with it

Mar 05, 2011 | 1989 Honda Prelude

1 Answer

I recently changed the alternador belt on a 2001 chevy metro lsi, afterwards whenever i start the car , there is this rattling noise and when i opened the hood to check , to the left of the alternador...

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Drain the cooling system.
  3. Remove or disconnect the following:
    • Negative battery cable
    • Air cleaner
    • A/C compressor suction pipe bracket, if equipped
    • Loosen the water pump pulley bolts. Do not remove them at this time
    • Right side lower splash shield
    • A/C compressor drive belt
    • Lower alternator cover plate
    • Water pump/alternator drive belt
    • Crankshaft pulley
    • Water pump pulley
    • Timing belt
    • Dipstick tube
    • Upper alternator bracket from the water pump
    • Water pump and discard the gasket
    To install: Fig. 1: To ensure a tight seal, be sure gasket surfaces are properly prepared - Metro 7922z704.gif

  4. Clean the gasket mating surfaces thoroughly.
  5. Install or connect the following:
    • Water pump with new gasket. Torque the bolts to 115 inch lbs. (13 Nm).
    • New rubber seals
    • Upper alternator adjusting bracket
    • Oil dipstick tube
    • Timing belt
    • Water pump and crankshaft pulleys. Leave the water pump pulley bolts hand-tight
    • Alternator drive belt
    • Lower alternator cover plate. Torque the bolts to 89 inch lbs. (10 Nm).
    • A/C compressor drive belt, if equipped
    • Right side lower splash shield.
    • Torque the water pump pulley bolts to 18 ft. lbs. (24 Nm).
  6. Adjust the water pump drive belt tension and torque the alternator adjustment bolt to 17 ft. lbs. (23 Nm).
  7. Install or connect the following:
    • A/C compressor suction pipe bracket, if equipped
    • Air cleaner
    • Negative battery cable
  8. Refill the cooling system.
  9. Start the engine and check for leaks, repair if necessary.
Prizm 1.6L ENGINE
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Drain the engine coolant.
  3. Remove or disconnect the following:
    • Negative battery cable and properly support the engine
    • Right side engine mount and support
    • Upper and middle timing belt covers
  4. If equipped with power steering remove the following components:
    • Front transmission mount
    • Radiator fan motor
    • Coolant reservoir
    • Upper radiator hose
  5. Remove or disconnect the following:
    • Crankshaft Position (CKP) sensor electrical connector from the dipstick tube
    • Dipstick tube
    • Engine Coolant Temperature (ECT) sending unit
    • Coolant inlet pipe
    • Water pump and discard the O-ring Fig. 2: Remove the coolant inlet pipe from the block, then the pump - Prizm 7922z705.gif
    To install:
  6. Install or connect the following:
    • New O-ring and Water pump. Torque the bolts to 10 ft. lbs. (14 Nm).
    • Coolant hose to the pump
    • Coolant inlet pipe. Torque the fastener to 11 ft. lbs. (15 Nm).
    • Dipstick tube. Torque the bolt to 89 inch lbs. (10 Nm).
    • ECT sending unit to the dipstick tube
    • Engine wire harness. Torque the bolt to 89 inch lbs. (10 Nm).
    • Radiator fan. Torque the bolts to 52 inch lbs. (6 Nm).
    • Upper radiator hose
    • Coolant reservoir
    • Front transmission mount. Torque the bolt to 47 ft. lbs. (64 Nm).
    • Upper and middle timing belt covers. Torque the bolts to 62 inch lbs. (7 Nm).
    • Right side transmission mount and insulator. Torque the bolt to 47 ft. lbs. (64 Nm).
    • Negative battery cable
  7. Fill the cooling system.
  8. Start the vehicle and check for leaks, repair if necessary.
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Drain the engine coolant.
  3. Remove or disconnect the following:
    • Negative battery cable
    • Drive belt
    • Right side lower splash shield
    • Water pump and discard the O-ring
    To install:
  4. Install or connect the following:
    • New O-ring and water pump. Torque the bolts to 8 ft. lbs. (11 Nm).
    • Right side lower splash shield
    • Drive belt
    • Negative battery cable
  5. Fill the cooling system.
  6. Start the vehicle and check for leaks, repair if necessary.
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Jan 02, 2011 | Chevrolet Metro Cars & Trucks

1 Answer

Leaking coolant but not overheating

Can you identify WHERE it is leaking from? Is it just a slight dribble and a bit of steam, of a major leak where it is running out?
If it is from the rubber hoses or near the clamps? Your vehicle is quite old and the upper/lower radiator hoses may have to be replaced. A fairly simple loosening of hose clamps with a screwdriver or with a pair of pliers and then just levering them off their housings.
But first get a large sheet of cardboard or plastic and a shallow pan to catch the coolant as you let it drain. Let the engine cool first... test if the internal pressure has gone down by squeezing on the upper radiator hose... if it is easy to squeeze then it is safe to drain and empty the radiator with the little winged tap that is just on the lower, inside of the radiator. Loosen the radiator cap to allow air to enter the system and let the coolant flow out. (Careful with pets... they seem to love drinking the coolant... but it is poison!)
You can now change the upper/lower rad hoses and heater hoses and maybe a short by-pass hose.
IF the leak is just a minor seepage from the radiator or inside the heat core (you likely can smell the vapours of the steam of the leaking coolant inside, the likely cure is to my some "radiator stop leak" from an auto supply store. Follow the directions on the bottle, but most have a syrupy liquid and little metal pellets. You open the radiator cap (when it is cool or depressurized) then add the small bottle of radiator repair solution. Put the rad cap back on and then you have to go for a reasonably long drive (usually 30 minutes or so) to heat up the pellets and have them "melt" as little flecks of soft metal in the solution. The idea is that as the coolant attempts to leak out... these little metal flecks block the leak.
IF you have the coolant totally dumping out and it is not a leaking hose, it may be the water pump and seal. I think I'd suggest that you get a mechanic to deal with that.... it is not an easy task for a DIYer !
I sincerely hope this helps. Please let me know...

Dec 15, 2010 | 1995 Chevrolet Caprice

2 Answers

Just bought a 1999 aurora with 4.0 liter v8, drove it 2 miles and was smoking from engine compartment smelled like antifreeze

There apparently is a coolant leak, could be the radiator, upper or lower radiator hoses, water pump, heater hoses or thermostat housing gasket.

Oct 13, 2010 | 1998 Oldsmobile Aurora

1 Answer

Leak where lower radiator hose connects to engine, how does it connect to block and is it difficult to repair the leak?

Real easy. The hose is held on by a jubilee clip. Best bet is to remove the hose (it will mean the radiator and block become drained of coolant) and clean the outside of the metal tube on which the hose is mounted. Sometimes corrosion here leads to leaks so scrape clean and polish with wire brush. Ensure that the hose is in good shape and that its interior has no bits of corrosion or dirt clinging to it. Slip the hose on to the tube and tighten the clip up. Refill the cooling system with a mixture of 1 part glycol antifreeze to 2 parts water. If in the Northern states make that mixture a ratio of 1 part glycol to 1 part water. Ensure the filer cap is on type and run engine up to operating temperature. Squeeze the top hose to help expel any air bubbles from the system. When the engine has cooled again check coolant levels and top up to make up for the expulsion of trapped air.

May 17, 2010 | 1997 Jeep Grand Cherokee

1 Answer


Yes, there is a "bypass outlet" coolant hose that connects from the water pump inlet pipe (metal pipe that runs from back of water pump along engine block to lower radiator hose) to the intake manifold.

I am not sure about the "black box" - not enough detail.

Jul 14, 2009 | 1987 Honda Accord

1 Answer

Lower radiator hose leak metal tube

this lower tube is coolant inlet tube to water part as far as i know..they will know what one it is if you describe it..fairly common part..not too bad to replace

Apr 17, 2009 | 2006 Chrysler Town & Country

1 Answer

Water leaking from rear of engine

look under the intake there are small hoses that go from the intake to the block they get hard and brittal over the years just wiggle the hoses while it is running that way the coolant will be flow through them should find the leak

Jul 07, 2008 | 1998 Honda Prelude

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