I was thinking of buying a new Chevy Colorado with the Vortec 3500 I-5 engine. I would like to hear from anyone with good or bad experiences with the I-5 engine. Thank you in advance for any input.
Kenn
Vortec 3500 I-5 engine - Good or Bad?
Aug 04, 2005
6 Replies
About the only problem we have seen so far is a misfire problem that can be traced back to exhaust valve springs. This is a rare condition, and I imagine the vehicles you would buy right now have already been updated.
Ian
I bought an 04 about 3 months ago. Decent power until you put a trailer behind it. Mine is a 3.73 rear end with traction control.
The I-5 is a good engine but 3.73 gears with 31 inch tires is too tall for I-5 to tow with. You want 4.10?s in it if you plan to tow anything with it at all and even then I would say 3500lbs or so tops.
I've had a Colorado for about 36K miles now, and am very happy with the engine. The only mild complaint I have (not really engine related) is that the cruise control sucks on hills - goes into passing gear too often. Very happy with it overall.
-= Larry A.
It is also the ZQ8 sport model with the 235/50ZR17's.
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