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I have a 2003 GMC Envoy - I had a new catalytic converter and new exhaust system installed due to loss of power. Was told everything else checked out fine and rear resonator did sound loose and was m

New plugs were put in back in February due to sputtering. Dealership steered me somewhere else to deal with catalytic converter and exhaust. Asked them about vibration, they said the exhaust was in a bind. Mechanic who installed exhaust system rechecked, stated exhaust not in a bind, hydraulic motor mount on engine could need adjustment to quiet engine when in drive. Envoy has 127,000+ miles on it but ran perfect up until the problem in February. I bought it with 7,000 miles on it in 2003 and serviced it every 3 months with oil changes and whatever timely services were encouraged.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 24 Answers

SOURCE: Noise and Vibration

I replaced the lower passenger side engine mount and the vibration is still there but a bit less vibration. The lower passenger mount was worn out. I was told by the Dodge service dept that it takes 5 hours to change the main hidden engine mount which is mid way up the passenger side of the engine. That main hidden mount cost 75.00

To get to it you would have to remove the wheel, inner fender plastic work, windshield washer fluid tank, and etc.

Posted on Nov 18, 2008

Scorpedo
  • 111 Answers

SOURCE: car dies when driving,check engine light comes on.

There is a good chance it could be your fuel pump , however if the check engine light is coming on and the dealer cant tell you what is wrong , try a different dealer or another shop. Second opinions never hurt.

Posted on Dec 12, 2008

keithheavili
  • 410 Answers

SOURCE: 2003 Buick Regal Service Engine Soon light.

The error that I'm showing for error code P1133 is 
P1133 Heated Oxygen Sensor (HO2S) insufficient switching bank 1 sensor 1(Rear Bank).  I would suggest having both of your Oxygen Sensors replaced if you haven't already had that done.  Hope this helps.  Thanks for an honest rating and for using FixYa.

Posted on May 19, 2009

  • 77 Answers

SOURCE: SMALL PROBLEM ROUGH IDLE.SMALL VIBRATION WITH

You need to find out what DTC the vehicle sets when the check engine light comes on. This will help you diagnose the problem. The engine is misfiring causing the rough running concern and probably the vibration in the dash. The DTC will tell you what specific cylinder the misfire is in P0300-304 or if the fuel is metering too lean P0171. Then you can check the appropriate system for a fault. you'll need to get a generic OBD2 code puller (local parts stores sells these things). let me know what specific DTC's you pull and I'll see if I can help you further.

Posted on Jan 26, 2010

01fordeb
  • 1033 Answers

SOURCE: vibration when idling in drive

check your pulley's. Sounds like one of them are bad and causing movement which where the vibrations coming from. A friend of mine had the same problem, his was the fan pulley. It could be moved inward and outward a little but enough to cause the engine to vibrate. The bearings were going out. check it out and let us know what you come up with.

Posted on Jan 27, 2010

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2 Answers

Last time. I have Ford focus 2003 sedan dohc 2L. I lost a part from exhaust system. from back to front I see 1. tail pipe 2. rectangular box shaped part? Lunch Box? 3. missing part Muffler?


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Replaced catalyst converter, both sensors and still have code P0420 what's the problem


Hi there:
The possible causes of this code are: exhaust leak between the exhaust manifold and converter, downstream O2 sensor wiring damaged due to coming in contact with exhaust pipe, or failed converter.


Check for any exhaust leaks and repair as necessary. Check wiring harness at O2 sensor and if damaged repair or replace. Keep in mind that catalytic converter have a 8yr/80,000 mile federal emissions warranty, so if you have less than 80,000 miles this will be covered undered the warranty and would need to be replaced by dealership.


We strongly recommend that if you need to replace the catalytic converter that you replace it with an OEM unit. Second choice would be a high-quality replacement part. There are many stories in our forums where folks replaced the cat with a cheaper aftermarket one only to have the code return shortly thereafter.



Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Aug 24, 2012 | 2002 Honda Civic

1 Answer

Catalytic converter has plugged up twice in 3000 miles


Catalytic convertor fails due to oil burning, recent head gasket, improper fuel control,but plugging up at 3000 mile misfire surely plug it up when the vehicle is dumping gas in the catalytic, lean misfire ,running very rich due to a coolant temperature.Who is putting this on?I dont know what state you are from,a catalytic should not be installed unless the vehicle is in proper fuel control.and whoever installed this should foot the bill. You need to claim warranty regardless and plus there is a EO# that must match the vehicle.

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I am driving a 91 Buick Century that seems to have a fuel problem. It wants to sput and sputter when it gets to just at half a tank of fuel. It does not matter what gas station I get the fuel from. It...


Did you replace the fuel filter also? Have fuel pressure checked, new pump does not always equal good pump, have gotten bad ones before. Check / replace gas cap- may not be holding correct pressure in tank. Or, the seal on the fuel pump hole may not have sealed. Occasionally, the choking and sputtering as well as a pop or hesitation can be caused by a bad catalytic converter. If the converter is plugged, it will choke your engine out due to back compression. A 1991 car with a rusted muffler would prompt me to check out the converter as it is most likely bad also and could be the root cause of your problem. Good exhaust is essential to good performance.

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NO POWER WHEN PUSHING ON THE GAS AND IT SPITS AND SPUTTERS AND BACK FIRES 2003 E150 FORD VAN ALREADY CHANGED SPARK PLUGS AND WIRES AND AIR FILTER


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Slowing down to go up hill hard to press the gas


Your catalytic converter sounds like its clogged...When clogged it restricts exhaust and puts excessive back pressure on motor causing loss of power ,especially when engine is under load.(going up hill).ONE WAY TO SEE IF THIS IS THE PROBLEM IS TO LOOK UNDER VEHICLE WHEN PROBLEM OCCURS...tHE EXHAUST PIPE BEFORE THE CATALYTIC CONVERTER WILL BE GLOWING DUE TO RESTRICTION....

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When i start my 95 camry it runs great for the first 3 or 4 minuets and then when it warms up and you try to accelarate then it sputters and shuts down


check the ignition coil for crack and burn
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Mar 28, 2010 | 1994 Toyota Camry

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Jeep starts and idles perfect no acceleration,


Sounds like the catalytic converter or muffler are clogged. There isn't much exhaust at idle, but when you accelerate your exhaust volume increases, thus if your catalytic converter or muffler are clogged the restrict the exhaust escaping out thus causing an excess of back pressure which won't allow the engine to breathe normally.

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