Engine Exhaust System Problems of Chevrolet Blazer

The contacts daughter rented a 2024 Chevrolet Blazer. The contact stated that while his daughter was driving at an undisclosed speed, after driving over a small imperfection in the roadway, there was an abnormal scraping sound coming from underneath the vehicle. The driver pulled over to the shoulder of the roadway. After a visual inspection, the contact observed that the exhaust mounting bracket had disconnected. The vehicle was taken to an independent mechanic by the rental company, and the vehicle was repaired; however, the contact’s daughter was not provided the diagnostic results. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was 29,000.

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The electric smog pump on my 2001 chevy Blazer had failed when pump filled with water and shorted out. This is caused due to the short intake hose to the pump. This is an apparent known issue with gm, but they will not replace the pump. This also causes the vehicle to fail emissions testing. Gm wanted $400 for the pump + labor to repair the issue. Once the part became available for 3rd party vendors, we were able to replace the pump ourselves, added a longer intake hose, and the vehicle now runs correctly. I feel that since gm is aware of this issue and it adversely effects the emission control of the vehicle, the repair should be gm's responsibility.

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Vibration and droning noise started 1 1/2 weeks (approximately December 9 or 10, 2003, after purchase on 11/24/2003. Levels of vibrations range from light to medium to heavy; levels of droning noise range from light to medium to heavy. 1. 1st repair visit--1/17/04 for vibration and droning--(droning was not mentioned on service order;when leaving the dealer, the vibration and droning noise worse than when it was brought in. Service order had "1465 excessive exhaust vibration l2004 . 4 to align exhaust system . 5 to install clamp kit install exhaust weights 602 line total . 9 hr" 2. Truck was immediately returned 1/17/04 for excessive vibration and droning and was asked to return truck on Monday. 3. Truck taken in for repair on 1/19/04; "1563 repositon brckts for vibration vibration normal for a six cylinder operating as designed 602. " 4. Truck taken in for repair on 2/2/04 at 7 a. M. ; kept truck all day and overnight. 2050 adjust exhaust, trans, and engines mounts to change common frequency of vibration. No charge reference vehicle 4k124143 stock vehicle 602. 5. On 2/4/2004, met with gm representative, dan sotelo; engine running as designed, no defects noted, said he rode in it (not while I was there) he did sit in truck with me and the mgr of service along with another gentleman. 6. On 2/23/04, truck taken to frank parra Chevrolet, irving, TX, for vibration and abnormal noise. Frank parra could not hear any noise so no corrections were done; checked for trouble codes, service bulletins and road tested. Vibration in seat console. Both dealerships are next to freeway with heavy traffic. The men at the dealerships do not appear to hear this droning (my brother calls it a rumbling noise). The vibration is felt by my brother, my husband, and a friend. My former mechanic could hear the noise and feel the vibration. Something is wrong with this vehicle and I dont know what is causing it.

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I m buying a 2002 Chevrolet Blazer now the emission exhaust system has begun to let out dust heat out of the air vent. And making my head hurt and body hurt. The warranty said that it is the emissions control system warranty.

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Numerous electrical problems and or failures, bad fuel and exhaust problems, suspension pops excessively, gas pedal sticks intermittently, radio replaced twice, electric seats and windows malfunction.

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There was a bad smell coming from the vehicle, and the windshield wipers were inoperative.

Have taken truck to dealer several times for this problem. They have a tech. Bulliten on this. They say it is the air pump turning off/on. But gm dosen't know how to fix this problem.

On 2/9/00, ruck was taken to james martin Chevrolet-Buick dealership due to emission problems. The truck was not repaired until 3/7/00 because it was "difficult" to determine where the evaporation leak was coming from. Less than 6,000 miles later, another emission problem happened on July 29th. I was driving on the expressway when I started to smell gas fumes. It brought me to the point of chocking and I had to get off the expressway and get out of the truck to breathe. The problem was fixed on 7/31/00, however, I still feel that a recall should be issued on the chevy Blazer 1998 edition. The botton of my invoice states that further diagnosis will be done once the driver notices any other problems. This concerns me because each time, the emission problems is becoming worse than the last one.

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When turning steering there is a loud thumping noise. Consumer took vehicle to dealer, and they said it was the exhaust. Please provide any further infomation.

Intermittently headlights/ interior lights and instrument panel lights just flicker on and off. The truck was taken to the dealership. Notning was done about the lights. When taken to the second dealership, consumer was told that the manufacturer was aware of the problem, but did not know what was causing the problem. In addition, , while driving at 45 and turning left consumer hears moaning noise. Noise is caused by improper torquing on right front suspension. Whining noise is also coming from secondary air pump.

Loud "clunk" noise is heard from the exhaust system under vehicle during start-up and engine shutoff, cruise control shuts off during operation at 55+ mph, front passenger seat recliner handle broke off without force, handle on the cargo shade in the rear broke during cold temperatures, driver side mirror shakes while driving, fog lamps keep blowing out on both sides, gas pedal sticks often, causing a safety hazzard in traffic.

Xexhaust fumes entered vehicle.

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The hvac system cannot be set to shut out fumes from other vehicle causing them to enter the cabin of the vehicle and resulting in driver and passenger discomfort while driving. Nlm.

Exhaust system failed causing fumes to enter cabin of vehicle.

This is a mouse problem. No accident. Just breathing mice feces for a long time. Fumes make me fell nausiated. Mice enter vehicle unabated. Gm says its not thier problem. Vehicle is under warranty.

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Vehicle has 92k miles, but its 99% highway miles. The tranission failed as well as the sensor module, gas gauge failed, water pump failed, cracks in the exhaust system, windshield fluid leaked into the vehicle when rear washer was activated, bad battery which was never replaced (trying to sell me a new one all the time), constant resurfacing of front rotors due to unevean wear and a defective gas gasket to the evaporative system. I can supply exact mileage and dates of repair. If I didn't have an extended warranty, I would have taken Chevrolet to court by now for a new vehicle. I don't think my next vehicle will be a gm.