Tl* the contact owns a 2001 chevrolet silverado 1500. while driving approximately 25 mph, the vehicle stalled and the security warning indicator illuminated. the contact waited a few minutes and the vehicle restarted normally. the contact also stated that the failure occurred approximately ten times in the past eight years. the vehicle was taken to nix auto center inc. (700 s george nigh expy, mcalester, ok 74501) in july of 2015 to be diagnosed, but the failure could not be duplicated. the manufacturer was notified of the failure and provided case number: 8-4865333314. the vehicle was not repaired. the approximate failure mileage was 138,000.
I am the original owner of this very well maintained silverado. at just 100000 miles i noticed multiple exhaust manifold bolts broken, i had noticed a ticking sound for at least 10000 miles but could not locate the sound, as it turns out it was the broken exhaust bolts. these bolts break off at varying lengths including below flush which is extremely costly to have replaced. after a brief internet search i have realized this is a major issue with a majority of these vehicles. this is definitely an epa concern being the raw gasses are flowing out of the vehicle bypassing the catalytic converter and by not allowing these vehicles to pass regulatory smog certifications. this defect could also be considered a safety concern with the potential for the exhaust gasses to get into the passenger compartment. i truly hope that you can investigate these defective bolts and at the very least get chevrolet to acknowledge the issue and help with a portion of the cost to repair.
Evaporated system.
Tl* the contact owns a 2001 chevrolet silverado 1500. the contact stated that the vehicle stalled on several occasion without warning. the contact also stated that after numerous occasions the vehicle was able to restart. the vehicle was not diagnosed or repaired. the manufacturer was notified of the failure. the approximate failure mileage was 104,000.
Two of the factory exhaust manifold bolts are broken on the drivers side of the engine, the back two nearest the fire wall. there is an exhaust leak due to the factory exhaust manifold bolts breaking off, and the manifold is leaking exhaust which is very close to the firewall material which i am worried that might catch on fire. gm should have a recall on these exhaust manifold bolts on silverados to fix and repair them. *tr
Tl* the contact owns a 2001 chevrolet silverado 1500. the contact stated that while driving 55 mph, the vehicle stalled without warning. the contact mentioned that the failure recurred several times. the vehicle was not taken to the dealer. the manufacturer was made aware of the failure. the vehicle was not repaired. the failure mileage was 190,000 and the current mileage was 198,000.
Went to change exhaust manifold and gasket when number one cylinder manifold bolt broke off under minimal pressure. bolt broke off flush/recessed to gasket surface of cylinder head. inspected bolt and came to the conclusion that the bolt was fractured when it was installed during vehicle assembly. spoke with dealership and representative pulled up vin history in computer. history showed an error with number one cylinder during vehicle assembly and dealer service representative stated "that motor should have never made it out of the assembly plant." no help from dealership to remove broken bolt so exhaust leak can be repaired. dealership also noticed that the number one spark plug on the same cylinder was sticking out further than the other plugs. come to find out that the spark plug hole had not been threaded all the way into the cylinder. no help from gm on that one either. had to buy a tap and finish threading the hole myself at home. researched broken bolt extraction for silverado exhaust manifold and have found that this is an epidemic and there are multiple videos on youtube about this issue. *js
Loss of coolant no visible leak, coolant is seeping into heads due to faulty castech heads used by gm in the manufacturing of these trucks. *tr
The vehicle would either stall while driving various speeds or fail to start. i was driving approximately 55 mph when he noticed that the fuel gauge displayed empty which was inaccurate; however, the vehicle suddenly stalled, coasted to the shoulder. car would not crank at first but then started, this happened several times, the vehicle would sporadically become hesitant to start. the vehicle would also stall periodically without warning. the other components, such as the radio, were still operable. the vehicle would sporadically become hesitant to start. the vehicle would also stall periodically without warning. autoride suspension, not working. harsh ride without shock dampering. front passenger seatbelt frequently locks up and will not extend enough to secure a person. seat belt often locks up when passenger is belted in and passenger cannot move. *tr
Tl* the contact owns a 2001 chevrolet silverado 1500. while driving 70 mph, the vehicle lost power. the contact had to roll the vehicle a mile down the road. the vehicle was towed to the dealer where it was diagnosed that the distributor was full of water, which burned the coil and needed to be replaced. the vehicle was repaired; however, the failure recurred numerous times. the manufacturer was notified of the failure. the approximate failure mileage was 7,000.