Wow, hope you have better luck, with that Colorado than my company had with the 3 they have. Same motor as yours and all blown up under 30,000 miles. They were towing 3000 lbs small trailers and that taxed the engines too much according to local GM dealer. Was enough of a pain in the butt that the company went back to Dodge Dakotahs. I never thought that would happen! We used tio have S-10s and they never had those motor problems that the Colorados do, but they are rated to tow more and haul more than the Colorados are. Just be very sparing with towing anything with that truck. The dealer said they can't hardly give them away!
06 Yamaha Bruin 4x4
04 TRX Rancher 400 AT 4x4 GScape
86 ATC 250es Big Red
84 ATC 200s (31 yrs running strong)
13 F150 4x4 SuperCrew 5.0
00 Excursion V-10 lifted with 35s
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Gone
07 CanAm Outlander 650, 05 TRX 450R, 85 ATC 250r, 01 Kawasaki KLF Bayou 220 , 02 400EX, 85 ATC 350x, 84 ATC 200x, 85 ATC 350x , 98 KLF Bayou, 86 ATC 250r