Question about 1991 Plymouth Acclaim

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Loud clanking noise under hood and antifreeze leaks

There is no hissing noise. The noise sounds as if something is rattling under hood.

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CHECK YOUR WATERPUMP

Posted on Nov 06, 2012

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Posted on Jan 02, 2017

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1 Answer

Loud clanking, rattling, noise under hood


You will need a friend to help you.
Move gear selector between P-R-N-D-3-2-1
Identify the source.

Top off the ATF fluid and re-test.
If the transmission filter and ATF is over 2 years old then you should replace them.

Please reply with the finding.

Nov 06, 2012 | 1991 Plymouth Acclaim

1 Answer

I changed the thermostat and put in a new radiator on my 99 hyundai elantra. It drove fine i guess for about a week, but then started overheating again and stopped on me! Any suggestions? I smelled some...


You have some kind of a leak in the cooling systemDo you smell antifreeze when your inside the vehicle dose the heat work alright It may also be an engine vacuum leak you need to start it look under the hood and listen to where the hissing noise is comeing from if its cooling you should see antifreeze see if the floor is wet inside it could be the heater core and check vacuum lines for splits cracks on disconnected lines Ycould check to see if the radiator is holding pressure take a towel and turn the cap see if its under pressure but its going to be hot don;t get burned

Nov 16, 2010 | 1998 Hyundai Elantra

3 Answers

Some one said its the idle pulley


well hissing and rattling are two types of noises, a rattling could be a pulley , a hissing could be a vaccum leak, the best way is to remove the belt of that pulley, if the noise you hear goes away, then that your noise, if not then its something else, again ahissing is more of vaccum, hope this helps.

Dec 07, 2009 | 1997 Mercury Villager

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Loud clank and grabbing feeling while driving just


Stop engine and ck for a loose pully, Check the belt tensioner. flying parts under the hood no good.

Nov 15, 2009 | 1996 GMC Suburban

1 Answer

My car idles at 3 and the brake is stiff


Sounds like you have a major vacume leak, Chk. line going to break booster. Do you hear a loud hissing or whiseling noise either comming from under the hood or under the dash especily when you apply the break? If under dash could be bad break booster, if under hood still could be booster or a break in the vacume line from engine to booster.

Sep 07, 2009 | 1995 Pontiac Grand Prix

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Oil consumption, rattle, engine noise


Check under the hood and inspect the valve cover gasket. If it's bad it would explain why you don't see any leaks on the ground because it's probably burning off on the manifold. This ticking you're hearing is a lack of lubrication to the rocker arms. Apart from the valve cover gasket, you should get under the car and inspect the oil pan and oil filter for seepage. Best of luck on your problem.
Greg

Jun 10, 2009 | 2004 Nissan Sentra

2 Answers

Rattling from under the hood


I would start by splitting up the drive train to determine if it is accessory, engine or transmission related.
There are a number of things that can cause a problem like this.
1) Is the noise louder in drive or reverse.
2) I would start with heat-shields because of your "clank" description. Exhaust manifold, catalytic converter shields and any other you can find under hood or under body.
3) If all is good, check engine and transmission mounts. Make certain none have collapsed, cracked or broken.
4) If all good, remove all accessory drive belts and start engine to see if noise goes away.
That's a lot to start with, so let me know what you find and we will go from there.
Regards.

Mar 30, 2009 | 1995 Buick Riviera

1 Answer

Antifreeze leaking


Sounds like you have a coolant leak from either the radiator or a hose.

Mar 08, 2009 | 1993 Honda Accord

1 Answer

1988 Suzuki Samurai Hissing Sound Under Hood


hi its definatley an air leak if you have replaced the hoses i suggust the next thing you try is see by tighting the carburrettors nuts that hold it to the manifold as these come lose and **** air do the same with the manifold bolts i suspect you will find them loose if not then change the gaskets one at a time with the cheapest first the carburretors then the manifold you may want to go to your car shop and ask for an air leak spray or they may use some other kind of method but basicly you spray it round the carb/manifold and watch to see where the leak is yates210456

Aug 05, 2008 | 1988 Suzuki Samurai

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