Q: Q: Engine

asked by on

I have a 1997 GMC Yukon. We swapped the motor 5.7 Liter Vortec, with the same exact motor out of a 1999 Suburban.. Ever since it has been running horrible.. It has new plugs, wires, distributed cap and rotor, new fuel pump.

My car has 200000 miles.
My car has an automatic transmission.

The running rough may have something to do with the two different years of the engines but only a computer scan and fuel pressure test would be able tell. Have a certified mechanic, like one from YourMechanic, diagnose the car’s rough running symptoms to see if the problem can be figured out. Good luck.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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: When headlights are turned on, gauge lights go out

Hello there, thank you for asking about your 1997 Chrysler Intrepid. From your description, it sounds like the speedometer works but just does not illuminate so you can see it at night. If this is the case, the problem likely...

Q: When starting, car shakes and rattles and then quits

Sounds like you aren't getting enough fuel during "cold" start. First thing, check the cold start injector, and thermo time sensor, which regulates how long the cold start injector squirts. Next, check the Over-Voltage Protection relay and circuit. If this...

Q: Are parts for a Toyota Raum 1997 the same as a Toyota Corolla?

Hello, thanks for writing in. The Toyota Raum is a different vehicle platform then the Corolla, and therefore mostly use different components. The Raum comes equipped with a 1.5 liter 1NZ engine, which was found in one trim of Japanese...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...