Question about 2003 GMC Safari

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When ac is turned on Intermittenly get vibration and noise in varying degrees. when ocurring vibration will increase with engine speed.

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Replace you blower motor. Cheap fix, @ $30...

Posted on Sep 12, 2009

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Humming noise from dash when air con egaged increases when reving motor very anoyin


as the noise increases with engine rev's i would get the A/C drive pulley checked for bearing wear as a starting point, the noise may sound as if coming from dash but engine noises are notouriously difficult to locate from inside the vehicle , keep me posted if you wish

Dec 19, 2014 | 2009 Mercedes-Benz ML 350

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Bad vibration when in gear but idle speed


I'm not sure exactly which vehicle you have so I'll try to be genera yet as specific as possible to help you determine the problem. I'm assuming here its a Gas Fuel engine.

1.) if its a carburetor type engine, You may need to adjust the RPM to increase or lower the Idle. Its commonly called the Ideal screw and adjust the air fuel ratio to stabilize the engine fuel mixture to increase the RPM.. its found on the Carburetor.

2.) ts fuel injected you will need to adjust the throttle body position to archive the same effect.

if it has a distributor , you can turn the distributor as well to adjust the RPM.


rough idling is usually caused by Mounts, since you changed yours the next most likely issue is the RPM itself or idling speed / rpm. If its to low you ill have that issue.

other possible cause is the distributor points (if any).. bad plugs, bad plug wires.. but those cause other issues while driving as well.

Dec 28, 2012 | Honda Accord Cars & Trucks

1 Answer

02 chevy trailblazer Vibration


oh,, we'll need some more information to be able to help, The thing is you didnt specify what vibrates for example when you start and you have vibrations while idiling, while in drive and the engine kicks back rough when changing gears more than likely its and engine mount thats bad. if its vibrating while idling its the fuel rpm ration (idling screw that needs adjusted or the MAP or air sensor if its fuel injected).. If its vibrating while the ac is turned on, check the ac step-up solenoid (the switch that increases the idling speed to match the ac's needed power.) we'll love to help or point you in the right direction but we'll need some more information. Describe whats happening for us , because we cant be there in person to actually experience it our selves. If you have a vid of the engine while vibrating etc all of that will be beneficial.

Dec 27, 2012 | Cars & Trucks

2 Answers

What is the cause of continual thumping (appears to be coming from back of car) and violently shaking?


Many times, rear tires that are out of round or severely cupped or feathered, or that are out of balance can create this type of issue. My first recommendation would be to have them and the wheels on the rear of the car inspected. There may not seem like there is much wrong visibly if you look at just the tread of the tires, but a good tire tech can spin them up and give you some solutions, and the inspection itself is inexpensive. Hope this helps.

Jun 19, 2012 | 1997 Nissan 200SX

2 Answers

Filled Coolant reservior and radiator Drove trailblazer at highway speed no cooling problem. When slowed down in traffic temperature increased to about 220 and higher, could hear coolant bubbling in...


If there is bubbles occurring even inside the top part of the radiator (where you have the coolant put in), you may have a leak on your head gasket. You may be loosing coolant through the engine.

Sep 15, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

When i turn on the AC there is a clicking noise from the engine 2004 trailblazer. when i rev the motor the noise also increases in speed. when i shut off the ac it stops and runs fine.


This noise is probably the AC compressor cycling on and off because the system is low on refrigerant. The reason it is low is that there is a leak, this needs to be repaired by an HVAC technician.

Jul 05, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

Vibration problems in 1kz te


Check calibration. Muffler supports from the front till the back, there should be proper clearance. Is your diesel fuel of proper cetane rating for the engine? Check your belt drive system, is there any part that is excessively draining engine power, power steering pump, air con compressor, alternator or generator? Do these preliminary steps and isolate.

Nov 29, 2009 | Toyota Pickup Cars & Trucks

2 Answers

I have a vibration that gets worse as speed increases. ive had the tires balanced


Hi:
If your tires are good, the next likely suspect are the universal joints on your drive shaft. They tend to cause rumbles and vibration that varies with speed.

Nov 18, 2009 | 1988 Jeep Cherokee

1 Answer

Low level growling noise at rt. front wheel increases with speed. No change if in or out of gear. Can start hearing noise begining about 38 mph. very slight vibration Car has 77,000 miles and is well...


first rotate the tires see if there is a change. If that does not have a desirable effect there may be a worn wheel bearing,take note if the sound or vibration gets louder as you turn a corner, try left turns as well as right turns if the noise increases it is a wheel bearing.

Sep 22, 2009 | 2004 Toyota Camry

1 Answer

Vibrating noise coming from either the engine or underneath


When the constant velocity joints are worn out. this is what u ussually get.

car vibrates if one or both are worn out. and vibration will increase as speed increases.

car will make a popping or tapping or clicking sound when steering.

Or they might just need lubrication too.
CONSTANT VELOCITY JOINTS ARE LOCATED JUST UNDER THE SHOCKS.....IT LOOKS LIKE A WORM LIKE PLASTIC COVERING A SHAFT.


hope this helps XD

May 13, 2009 | 1997 Ford Explorer AWD

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