Question about Chevrolet Cobalt

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I have a holden vx supercharged v6 and it keeps stalling when hot i put new fuel pump, filter, sparkplugs and it still keeps stailling

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  • Anonymous Mar 27, 2014

    G'day my problem is I have a vx Calais 12 month 2001 v6 supercharged that has a badge on the back that shouldn't exist a series 111badge but it hasn't been tampered with and I can't find out why its there

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Sounds like the modgel it will need replacing

Posted on Sep 14, 2008

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Wat kind of v8 is suitable for a 1997 3.8 v6 holden commodore excutive


your VT /VX came out with a V8 engine
you need the engines ECU and the V8 gearbox
manual diff ratios can be optional

1997 -2002 engines will bolt in

you could go up the next commy V8 model it has roller rockers
you can have a v6 or v8 supercharged if you like

once all bolted in you need a mutt 2 diagnostic reader to reset all the keys and modules and immobilizer for it to start and run

http://forums.justcommodores.com.au/vt-vx-holden-commodore-1997-2002





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Oct 19, 2016 | Holden Cars & Trucks

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Car stalls when excelerating on vt 3.8 v6 comomodore


sounds like a injection problem have the OBD read will give you a code to where problem lies

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1999 dodge ram 5.2 runs about thirty miles then stalls after running fine just suddenly loses all power sputters backfires engine stumbling badly. crank it up 4 or 5 hours later runs a little then same...


General advice:After warming up track the problem:sparkplugs (even new can have the ceramic parts broken/cracked /wiring (after warming up the isolation get's soft,can loose spark power)/ignition coil(s) (gets hot,stop runnig),running reach,fuel pump/fuel pump relay.Best guess:fuel pump mallfunction (low pressure) related,fuel filter cloged/water in the fuel/fuel line cloged/chipped. Cheers,hope u figure it out,let the people know.

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2003 Toyota Camry 166000 mi., 2.4 liter 4 cylinder. ONLY WHEN CAR IS HOT, idle drops off, engine stalls, must step on accelerator to keep from stalling. Otherwise, idles normally. New spark plugs,...


Some "check engine" light in your dashboard? If YES, need to scanned the PCM (computer) to know exactly what fault code is stored there. If NO, the crankshaft position sensor may fail, causing engine stalling or a failure to start. Replacement or the failed sensor will commonly correct this problem.

Also, keep in mind that on the 2.7L V6 and 2.4L 4 cylinder, a defective Exhaust Gas Recirculation (EGR) switching valve may cause an intermittent rough or unstable idle engine.

Stalling synthoms... you can have a plugged exhaust, plugged fuel filter, bad airflow meter, problem with the ignition system, incorrect timing belt/chain setting, and failing fuel pump....I'm sure there's more but that should get you thinking.

Keep us updated.

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1 Answer

V6 hard to start.replaced coils sparkplugs . check relays and they check ok put new crank senser in still wont start. no dash lights work and there no fuel pressure on rail.and the motor cranks good and...


I think you've identified your own problem. In your description of the problem, you indicate "no fuel pressure on rail".....

First things first, try replacing the fuel filter. If this doesn't do the trick, make sure the fuel pump is actually pumping (you indicated that you hot wired it with a 12 volt DC supply and it ran). Running is one thing....pumping fuel another. To properly identify issue you need to know the cranking fuel pump pressure. If you can get it to start it would also be a very good idea to check out the fuel pressure regulator.

When you turn the key to the "ON" position (don't crank it, just to to the position where it would run) do you hear a few seconds worth of pump motor activity?

If it tried to start when you introduced fuel into the breather, then I think it's safe to say you have some sort of fuel delivery issue.

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my first bet would be something in the fuel tank. there is a splash guard that helps keep the fuel by the filter when you turn, and slow down, go up hills. if it has broke off its not going to do its job. Also your fuel pump strainer and or fuel pump might be getting tired. My last idea would be that one of your sparkplug wires may be damaged and grounding out on the motor. I had one that made my truck bogg down on right turns.

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Car tries to stall, going over 50 mph.


you may have a fuel flooding, try to replace your sparkplugs and hi tension wires. if the problem still exists try to replace the fuel filter and fuel pump. try draining your fuel tank too and get rid of the rust and dirt. hope this helps

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Maybe weak fuel pump. It pumps when you turn the key on (fills fuel lines) but it dosn't pump enough to keep the car running. Could also be a partially cloged inline fuel filter.

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