Question about 1998 Honda Accord

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I have a leak on the back of the engine a large hose goes back there but I can not see the connection and don't know for sure if it is the hose leaking.

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  • GIO L
    GIO L May 11, 2010

    Might be a coolant leak. That hose may be going to your heater core. Verify to make sure. Is your heater working properly?



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Some of this below I wrote to another person and copy/pasted it here so it directs to the water pump incase that's your issue. If your leak is on the driver's side of the engine read the last paragraph, if not... maybe you have a ruptured radiator hose that connects to the block below your distributor. Another hose is the obvious one in front that goes from the top of the radiator to the head. In the back of the engine there's a hose that runs coolant to your heater core and another hose that returns the coolant back to your motor. Those are smaller hoses than the 2 main ones.

Do you need a new water pump, the bearing might have went out in it and it has a "weep hole" that lets the coolant near the driver's side front tire (on the engine block) out to let you know what happened, rattling is a good indicator too. Change the timing beltI have a leak on the back of the engine a large - 2.gif at the same time and you'll be good for the next 125k miles. Don't drive it any more or you will possibly warp the head or ruin the head gasket. The cost is about $350. for all around here in central Ohio, don't know where you are but hopefully it's not more than that. If you try to do this yourself you will also want to learn how to set the timing. Good luck.

Posted on Oct 05, 2009


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No Service Engine Soon seen for code P0442

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Sorry I don't have the diagram, but I do have a diagram of the engine and component locations. Your vacuum system is fairly simple. You have a MAP sensor attached to the air cleaner. I have pasted a picture below. It has one electrical connector and one vacuum hose that goes to the intake manifold or the throttle body.
Behind the right headlight is your evap canister. This will have a hose or line running to the fuel tank. Then it will have another hose going to the purge valve. The purge valve should be close by and it has a connector plus another hose that goes to the intake manifold.
Then you have the PCV hose that goes from the PCV valve in the valve cover to the air cleaner or intake manifold. I think yours just has a hose from the air cleaner and the rest is internal.
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I have a 1994 corvette and im having problems with it. They occur when my A/C is on. While A/C is running car shuts down like there is a bad distributer or a bad fuel pump. Sometimes, when I turn my A/C...

First thing I look for in a case like this is the common old vacuum leak.
While the engine is fairly cold and running, take a can of spray carb cleaner and
spray near known vacuum intersects or hose connections.The engine idle should change audibly if a leak is present.
When a vacuum hose gets a bad split or tear,the engine performance goes wacky.
Also look for a loose connection of the air intake hose(large one) or right where the connection is made to the intake.These engines are REALLY touchy where connections are concerned. don-ohio

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Hi, i have a mitsubishi montero 01, the air condition stops working due to leakage and my mechanic decides to remove the leaking pipe that goes to a unit(i dont know the name now) above the right rear tyre...

Make sure you have water in your radiator! The leaking is probably coming from there or a hose linking the radiator to the engine block. If there's no water, fill it up again (make sure your engine hasn't been running for awhile before opening it up). If there is water though, check for any hoses running the radiator to the engine if you can see them and make sure they are tight, look for wet spots on the hoses to see what might be leaking.

If this solves it, take it to another mechanic!

Aug 27, 2011 | 1999 Mitsubishi Montero Sport

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I have a 96 Tahoe and when i press the brake pedal i hear a hissing sound by the pedal and engine sometimes stalls, what could the problem be ?

That sounds like a brake booster problem. The brake booster runs on engine vacuum to help make the brake pedal easier to push and easier to stop the tahoe. When a booster develops an internal leak, you can hear the vacuum escaping through the leak when you step on the brake. The engine stalls because the vacuum leak in the brake booster also causes a large vacuum leak for the engine.

To verify that this is actually the problem, go outside the vehicle with the hood open. Find the large brake fluid reservoir attached to a large round metal black (usually) canister on the driver's side of the firewall. (back of the engine compartment.) There is a large black rubber hose pushed into the top of the black canister, which is the vacuum line attached to the brake booster. Pull the rubber hose out of the grommet on the booster and stick your finger over the hose. Have someone start the tahoe. You will feel a considerable amount of vacuum pulling at your finger, and if you take your finger off the hose, the engine will stall. Also have someone step on the brakes while your finger is over the vacuum hose. If the noise is gone then you know the problem is in the brake booster.
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1 Answer

I was told that my air flow sensor needed to be changed in my 2000 grand prix super charger. can you tell me where it is located on the engine and what it looks like?

I assume that someone looked at the "Check Engine" codes and saw this sensor error. If that is true, you will find the sensor inside that air intake that connects the air filter housing to the engine throttle housing. If the code is not why you are replacing it, first be completely sure you don't have any vacuum leaks. The intake tube will be a large rubber tube that has maybe a couple electrical connections and maybe a smaller hose. At any rate there is at least one connection to the air flow sensor. Disconnect the electrical connections and take that hose loose from the air filter housing. Take the filter housing off. Then you should be able to take the air intake tube off the throttle housing. It will have a fairly normal hose clamp. When you put this back together, be sure all the connections are tight and that there is nothing that might be an air leak. A leak in the intake allows air into the engine that has not gone through the sensor causes some serious performance problem by the fuel/air mixture being too lean. Should you see a suspicious connection of a vacuum hose anywhere, fix that first. You don't say what the problem is but a vacuum leak could look like an air sensor problem, unless the engine code specifically points to the sensor. Now that you have the intake tube off the engine you can look in and see the sensor in the tube. It is usually mounted by some small screws to the intake tube. It should be easy for you to take out of the intake tube. While you have the intake tube off, it's a good idea to clean the throttle plate and throat. Buy some spray cleaner that says it if good for throttle and does not harm oxygen sensors. Follow the can directions. Clean the throttle plate, then open the throttle full and spray all the inside if the throat that you can see. Put it all back together. The engine my be a little hard to start because of the cleaner you sprayed into the throttle throat. If there was an engine code you need to clear that so the light goes out and the old code doesn't remain in the system. To clear the code, disconnect the battery for about 5 minutes.
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I have a 1999 oldsmobile aleo i do not know where the engine coolant goes

Are you asking where to actually put the coolant in or asking why your coolant is needing to be replaced often?
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If you are loosing coolant & don't know why: Check coolant levels first, look for any leaks from hoses (make sure your connections are tight & hoses are not cracked/busted), check for leaks from the radiator itself (any holes or cracks), check the fan (is it turning like it should with the motor running), check the fan belt (is it broken). If all these things check out - get your water pump checked (if it's out, water is not getting to/circulating around like it should). If it's not the water pump, you may have a cracked head gasket. Check the easy stuff first though - good luck.

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Heater core leak on a 1994 pontiac grand am se

first check to make sure that the hose,s back there didn't crack / of there fine then the heater core has blowen open and is know leaking / if you are in an aera that diesn't get real cold take the hoses off and route one to the other till you can get it fixed

Feb 25, 2010 | 1994 Pontiac Grand Am

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