Greetings all - I am hoping that I can change my own spark plugs. I have done it before though not in this model. I understand that the back three plugs can be very difficult to get to. What is the trick to do it? Thanks in advance - Danielle

On V6, or V8, engines, which sit crosswise in the engine bay, it is often difficult to access the spark plugs next to the firewall (bulkhead). Some repair manuals instruct to remove the intake plenum, etc. Removing the plenum has the potential, upon re-installation, of creating a vacuum leak from p…

This job is - without question - a PITA for DIY. Depending on what kinds of things need to be done (e.g. actually moving the engine or removing alternator bracket) it is really difficult w/out the car on a lift. The front plugs should be incredibly easy - the back three are the problem. Unless yo…

Thanks to both hellokit and admitted amateur for theie reponses. I had gotten a quote for about $150 for this from a repair shop. Although I trust their work the price seemed a bit high. Now I understand better why they tagged on the extra bucks. I’ll ponder this but likely end up taking it in. I’m…

Given that I am on a low budget, I considered buying the plugs and wires, doing the front three and then - if I tried the back three and decided I couldn’t do it or it wasn’t worth the trouble - driving it into the garage for the back three. I have no idea how much $$ that would save. In the end I…

I have an 01 Impala, and when the plugs come time to be changed, I’d likely follow admitted amateur’s course of action - replace the front three, reproductive activity the back three. And $150 isn’t that bad to change the plugs on a transverse V6. My dad’s gotten a quote on his V6 Sonata to replace …

I have a 03 Chevy Impala LS with the 3.8L V6 and I already know that it’s going to be a P. I.T.A. thankfully my uncle is helping me with the tune-up

I’ve done transversely mounted engine spark plugs on GM sedans in the past, and they can be difficult. The front plugs are straightforward, but the rear plugs can be difficult. One car required a universal joint on the ratchet wrench, and applying torque was much more difficult. I ended up standing …

In the late 70’s I owned a Monza Spyder with a V8 engine. When I tried to replace the spark plugs one Saturday afternoon…I ran into a big problem with clearance. The manual said to remove the wheel…disconnect the motor mount and raise the engine. Repeat for the opposite side. I changed the spark plu…

How to change spark plugs - 2003 Chevy Impala

Maintenance/Repairs

pleasedodgevan April 21, 2008, 5:00am 7

You may not need plugs until the car hits 90,000 miles. If your car already has more miles, it was intended that you trade it in. It wasn’t designed any better than that although it may last longer. Another way is to wait until the intake manifold starts leaking and have the plugs changed then.

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How to change spark plugs - 2003 Chevy Impala

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