Question about 1997 Oldsmobile Aurora

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02 Durango: loud engine/exhaust sound. Also

02 Durango: loud engine/exhaust sound. Also Recently noticed the cooling fan running more than normal; had someone check the antifreeze/coolant....it was empty....had them put in a 50/50mix of coolant and water. Still sounds loud when started but after running bit sounds normal. What is this? Engine never overheated and temp gauge never came on

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Keep an eye on the coolant level, you might have a cracked engine block!!!
Watch for steam around Motor Block once the engine gets warm.

Posted on Jul 14, 2009

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I just replaced th fan clutch and water pump on my 2004 durango 4.7 and when i step on the gas now tach needle jumps up like crazy and the fan sounds like a jet and the engine seems slugish


The fan clutch may be different from the original, they use oil inside to vary the speed most of the time. Some are more affected by air temp than others.
As far as performance goes, is the check engine light on ?

Jul 04, 2012 | 2004 Dodge Durango

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Loud exhaust noise on startup


2008 GMC Envoy is only equipped with one of two engines:
4.2L (254") 6-Cylinder SFI
5.3L (325") V-8 SFI

Niether of these engines are equipped with an EGR valve, so I guess the probability of that being the cause of your noise is pretty much zero to none.

If you believe the noise is being caused by the exhaust ststem, then the only way to verify that is to inspect the exhaust system. Leaks are easier to verify with the engine running.

With that said, there is also a Technical Service Bulletin (TSB) that is published by GM that addresses customer complaints about loud noise that is being caused by the electro-viscous engine cooling fan clutch. Some people describe it as exhaust noise and others describe it as the engine "racing" or "roaring".(even though the tachometer (if equipped) will be reading normal)

It basicly says that it can make noise on startup due to high rpm of the fan which goes away once the electric solenoids open and allow the fan to start free-wheeling. GM says this is normal operation. You might want to check to be sure this is not what you are hearing. (it can be pretty loud)

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2000 durango cooling system fan running non-stop


Many engine control system faults can cause the radiator cooling fan to come on and run non-stop. Also, if your A/C is on or if you have your heating and cooling controls in DEFROST mode, this can cause the radiator cooling fan to come on (normal operation). Or there could be a cooling fan circuit malfunction (like a stuck relay) causing this to happen.

Check to see what mode your climate controls are in. If the climate controls are not in A/C or DEFROST modes, then you should have your engine control system properly diagnosed to determine the cause of the radiator fan being on continuously.

Also, if the Check Engine light is on, this is a clue that the engine control system is malfunctioning.

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What would cause my 2002 zx2 to overheat ?


Faulty thermostat, failed water pump, inoperable radiator fan, low coolant due to leak, faulty radiator cap, leaking head gasket, low oil, major exhaust leak near front, exhaust blockage, or incorrect ignition timing. If there is crust around radiator cap, cap is leaking. How long does it take to overheat? If it runs smoothly when cool, and all fluids are at correct levels, you can rule our head gasket, radiator cap, and ignition timing. If it overheats very quickly and fluids are correct, it is probably thermostat or water pump. If it seems to do better at higher speeds, it is probably radiator fan. You can check this by allowing vehicle to run in Park with hood open. Monitor engine temp on dash. When it is at or slightly above normal running temp, radiator fan should come on. Also note exhaust sound. If it seems loud and overheats gradually, you may have a leak before the converter. If the exhaust sounds quiet, but exhaust manifold is getting extremely hot (may glow red), there is probably a blockage. There will also be OK starting and idle but poor acceleration if exhaust is partly blocked.

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Hello, my name is Kevin Jones and I own a 98 durango, 5.2 liter. For about a month now, my engine has been running like a cold start. What I mean is that When the vehicle first starts up, it sounds louder...


You have a blown exhaust gasket it on the catilitc conerter or you have a bad catlic converter costs Offer Price: $258.99 or 02 sensor 18470508_bos_15705_thmb.jpg Bosch Oxygen Sensor Part No. 15705
OE Type - Exact Fit; 4 Wire; Heated; Upstream Sensor; Check / Replace Interval: 100,000 Miles
Warranty 1 YEAR REPLACEMENT IF DEFECTIVE
$51.99

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I just installed a clutch fan into my 2004 dodge durango and now the suv runs so heavy. I mean the suv runs loud. Is this normal?


Not sure what you mean by "heavy" and "loud"..

The fan might be "louder" because it may have been allot more quiet with the old failing fan clutch and not spinning fast enough.. Thus the new one working correctly making the fan spin much faster and being "louder"..
If that makes sense - to you question..

Sep 25, 2009 | 2004 Dodge Durango

1 Answer

02 Durango: loud engine/exhaust sound. Also Recently noticed the cooling fan running more than normal; had someone check the antifreeze/coolant....it was empty....had them put in a 50/50mix of coolant and...


That noise is probably the air injection system which is part of the emmision system. When it is making that noise, open the hood and determine where it is coming from, note if it is a mechanical sound, etc. The air injection if equiped would sound almost like forced air scaping somewhat like an exhaust leak, but less intense.

Jul 14, 2009 | 2002 Dodge Durango

2 Answers

2001 dodge durango temp. is high


use 50/50 mixture of coolant/water, use synthetic oil or no more than 5w 30. Change thermostat, make sure fans come on when idleing, otherwise change relay

Jul 09, 2009 | 1999 Dodge Durango

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