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2004-2006 GMC envoy/trailblazer 4.2L i6 ENGINE 165k miles

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2004-2006 GMC envoy/trailblazer 4.2L i6 ENGINE 165k miles For Sale

If you happen to be in the market for finding a excellent second-hand GMC motor for sale, look no further than Used Engine Finder. We allow you to quickly get in touch with a network of GMC autowreckers and engine importers, so that you can get the best deal on the ideal replacement motor to suit your needs.

With Used Engine Finder, you needn’t spend time doing your research. Let us know what you’re searching for, and our traders get you various deals. Our direct connection with the vendor helps to ensure that we are able to provide you with the best possible prices.


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Best Engine Replacement Procedure
  1. Swap the engine’s oil, fuel and oil filters, and coolant.
  2. Install new engine and external coolers if existing.
  3. Cleanse the cooling system thoroughly, then replace the water pump.
  4. Renew necessary hoses and belts.
  5. Install a new timing belt, spark plugs, and wires.
  6. Replace essential gaskets and seals, focusing on the oil pan, front, and rear main seals.
  7. Clear the vehicle’s computer codes before engine installation.
  8. Ensure the replacement engine matches the original specifications.
  9. Transfer exhaust manifolds, mounts, distributor, and sensors from the old engine.
  10. Disable fuel and ignition before ignition to prime the oil.
  11. Ensure no plugs or tape remain on the engine before installation.
7 Common Mistakes to AVOID!
  1. Not resetting the vehicle’s computer codes before installation.
  2. Skipping the step of adding engine oil before the first startup.
  3. Forgetting to deactivate the fuel and ignition systems, essential for priming the oil.
  4. Ignoring the replacement of the oil cooler or the radiator’s integrated oil cooler.
  5. Overlooking the cleaning of the radiator and checking the operation of the cooling fans.
  6. Not swapping out the flywheel and its securing bolts.
  7. Trying to initiate the engine’s first run without proper priming.
Warranty Info
Review our Warranty, Return & Exchange policies before ordering. Standard Warranty: 30 days parts replacement. Extended Warranty: Optional 90 days. No labor costs covered. Defective parts may be replaced or refunded. Read more.