Skip the auto shop - Our mechanics make house calls

Q: Opinion on GM's 4.3-liter Vortec engines

asked by on

What's your opinion on GM's 4.3-liter Vortec engines? My father has a 2004 Chevy Express 1500 with 400,000 miles and he's looking to get a new one. Are they reliable or is it just a coincidence?

With the overall vehicle, it is a coincidence for your father. A lot of times, the vehicles fall apart. The engine themselves are actually decent engines. They are strong engines, those 4.3-liters. But the Vortec fuel injection system on them is often garbage. It has a lot of plastic on it and it melts. When it does, you have to replace them all at once and you usually end up spending up to $1500-1800 dollars to replace all the fuel injection parts. I’m not a big fan of them myself but the engines themselves are decent engines. I think he got lucky though, to get that kind of mileage. He probably takes really good care of his vehicles.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Opinion on GM's 4.3-liter Vortec engines

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Trying to swap a 3800 series 2 motor from an 03 impala to an 04 Bonneville will it work

Hi there. You might want to consult with a local engine swap mechanic on this one. Since we don't offer this service to our customers, we try to stay away from giving definitive answers on whether or not engine swaps...

Q: Oil level drops during idling

Paying close attention to your gauges while driving is a great way to monitor your vehicle and ensure that it is running efficiently. I have actually come across this concern during other experiences with Chevy Express vans. When the van...

Q: would fuel system cleaning gas fuel injection cause service engine soon light to come on?

Hi there. Sometimes certain fuel injector cleaners can aggressively remove carbon deposits from sensors and cause a service light to illuminate but it is very rare. What is more likely is that the service light came on due to the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...