We have classified the 4 complaints from 2003 Chevrolet Silverado 1500HD about ENGINE AND ENGINE COOLING into the following categories.
3 of the 6 exhaust manifold bolts have broken off on left side ,2 on the right side . i now have the exhaust ticking sound and on occasion get exhaust smell inside cab.i noticed the first broken bolt at approx 55000 miles. i now have 112000 miles. *tr
Gm 2004 1500hd truck: gm can't fix the reduce engine power problem. the code that they can't fix keeps saying its the throttle body sensor. i have had gm dealer try to fix what this code is telling them but still have the problem. based off research this is a major problem with many other gm truck owners. when this sensor light comes on & displays reduce engine power the truck basically shuts down. i've had this happen running in the left lane of a major hwy and almost got run over. please have gm do something about this problem because i'm sure if it hasn't killed anyone yet it will. only thing different between the toyota problem and the gm problem is one speeds up and the other slows down to 20mph. as i have stated this problem happens a lot so don't pay attention to the incident date i had to enter. *tr
2003 chevrolet silverado exhaust manifold bolt broke. less than 100k miles. costly repair to have the bolt drilled out and replace all bolts and gasket. exhaust leaks and can hear ticking noise for the first 10 minutes or so after the vehicle is started. also causes my check engine light to come on, pulling error codes for oxygen sensors. *tr
I was driving along the road this past winter and a car suddenly stopped in front of me...i had absolutely no brakes and thankfullly was able to get around the car into the other lane without injury. the brake lines were all corroded and needed to be replaced. this could have been a serious accident had there been vehicles in the other lane. in addition to this the speedometer often stops working and is registering at the wrong speed. *tr
Tl*the contact owns a 2003 chevrolet silverado 1500 hd. while driving approximately 55 mph, the vehicle lost complete power. upon further inspection, the contact noticed flames under the hood of the vehicle. the fire department extinguished the flames, but the vehicle was completely destroyed. the cause of the failure was unknown. the failure and current mileages were 60,000.