car feel's like it is pulling

[SPLcamry]

When i have noticed this pulling for about 2 months. We have had the leads,plugs and diff oil chaged but still no luck.

It only happens when the car is at the lights or is under 2000rpm when you are driving. What is the cause to this really anoying problem ?

[HARVZ-6]

like its surging? i think thats what you mean?

[SPLcamry]

well i am not that sure what surging is, but if that is what is wrong with it how could i fix it ?

[HARVZ-6]

like chugging?

[SPLcamry]

Yes that is how it feels, how can i fix this problem ?

[HARVZ-6]

auto or manual?

the ecotec seems to get a lil rough down low becuase of fuel filter sometimes

try a new filter and some injector cleaning see how she goes mate.. even try premium fuel

[NVE_069]

Sorta sounds like what my LS1 does. Misses said it stalled today. really pissen me off now.

[SPLcamry]

auto or manual?

the ecotec seems to get a lil rough down low becuase of fuel filter sometimes

try a new filter and some injector cleaning see how she goes mate.. even try premium fuel

It's a auto

We have already tried the injector cleaner and premium fuel, made noe differences.

But i will replace the fuel filter tomorrow. Does anyone know where it is located in the engine?

Also will this cause the car to loose fuel pressure ?


thanks for all the help

[00vxsc]

fuel filter? you dont know where it is????? probably somewhere around the top of your diff coming out of your fuel tank. by the way the diff is the thing that back wheels are connected too!! LMFAO!

[SPLcamry]

lol hey i never evey worked on a commodore before. I have only worked on classic not plastic.

[vt s]

Just when doing filter undo your fuel filler cap to release the pressure.

[acarmody]

Inappropriate post, sorry SPLcamry.

[SPLcamry]

Yeah there was no need for that acarmody. Also thanks for the tip vt s.

[acarmody]

Sorry will remove, in bad taste. I'm immature at times, sigh growing old is mandatory but growing up.....

In another note I am interested in this thread because my car when idling sometimes surges a bit (feels like it wants to go), and also the RPM is a bit dynamic, drops, levels, drops, level, not much but noticable.

[SPLcamry]

Sorry will remove, in bad taste. I'm immature at times, sigh growing old is mandatory but growing up.....

lol, that's ok.

[acarmody]

It couldn't be a dodgy TPS or a dodge IAC sensor could it. When it surges a little bit does it feel rough like its running rich?

[SPLcamry]

umm no not really, but really smelly grey smoke comes out of the exhaust. Could it be the coil packs ?

[NVE_069]

smelly grey smoke I think ours does that lol. It sometimes stinks bad when under it.

[acarmody]

Doesn't grey smoke mean its burning oil? Check the oil dipstick just in case.

[SPLcamry]

Yep i checked the oil it's a little over full, put injector cleaner in. Doesn't help one single bit.


Any other things they may have caused this. Holden has no idea either.

[acarmody]

Hmmm this is puzzling. Did Holden check for fault codes?

Also have you pulled out the spark plugs and checked the tips? Something to try, process of elimination.

I'm worried about the grey smoke part. Usually means burning oil, and usually caused by worn piston rings.

[SPLcamry]

No holden didn't check for faults codes as far as we know.

No i haven't pulled out the plugs but i will do that, and if there dirty il replace them with the super dooper good ones lol

damm, i hope it's not piston rings, how much are they to replace ?

[acarmody]

That would be very slack (note, usual) of Holden to not check codes, take 2 secs with a TECH2.

No need to go get $20 each Iridiums or anything (if needed) I find the $40 odd dollar set of Platinums from Bosch to work well.

As for piston rings, how much do you think pulling the whole engine out and taking it down to the block would cost, note heaps. But take it to a well respected local mechanic before anything else (except spark plugs) and see what they think. The Holden apprentices aren't exactly seasoned veterans of engines.

[SPLcamry]

Yeah will do that, hope fully it is just the spark plugs being really dirty

Damm that sounds like it will cost up into the $1500 mark. If the spark plugs don't make a difference il go through and check all the hoses to the see if they are tight (fuel,water etc) and then check like the sensors to see if any of them have come loose. Thanks for all the helps guys even though it's not really making a difference, lol

[Tsunamix]

Pungent grey/blue smoke, right at startup only is indicative of valve guides being worn. Oil is seeping down between valve stem and valve guide and collecting in the combustion chamber, and being burnt away when you start the engine.

The same smoke whenever you put the foot in indicates oil entering the combustion chamger whenever you have higher oil pressure. Could be your oil control ringe being worn, or another oil leak into the inlet runner somewhere else, but it's unlikeley.

Usually if there is no / less smoke at idle and more at a 2000 rpm it's oil rings.

For your oil rings to be worn, you can bet your bottom dollar that other things are worn too. If I was in your shoes, I would get a trustworthy mechanic to compression test all 6 cylinders and report back the pressures to you. 150-155KPA is ideal. Under 130 Will be indicative of cylinder leakdown (getting old) and less than 120KPA means full rebuild time.

That being said, 250000 and 155KPA occurs often with the Ecotecs. You can't kill 'em.

the compression test will narrow this down, if just one or 2 have lost compression you could be looking at damage from something else, rather than wear.

Oh and surging / pulling at idle rpm with the foot on the brake ? Vacuum leak would be my first thought, check hoses and lines from Throttlebody to ...wherever it is they go. Actually there is a mild surge that occurs in mine that I put down to the tune I got with the throttlebody. Once every 30 seconds at idle it sort 'of clears its throat' with a rev up to about 1000rpm before dropping back to 700 rpm.