Running funny and keeps stalling

You must check the spark plugs gap and also the spark plug wires or coil on plug boots for cracks if all well look at the vacuum lines if ok the idle air control valve maybe very old or a dead spot in the throttle position sensor you must be in another country I'm in the USA and don't have a listing for a laser so I'm trying to guess what the ignition system is that's why I mentioned both above out of gap plugs is the first check here then go further good luck stephen

check the spark plugs. some of these gm motors are bad about valve covers leaking oil into the plug gallory.

Spark plugs won't cause this kind of problem. It sounds more like the oxygen sensor in the air intake is faulty. You may be lucky by just cleaning the connector from the sensor or cleaning the sensor itself. It may be contaminated with dust etc. Otherwise it will mean a new sensor. Very simply, the oxygen sensor tells the EFI system the best air/fuel ratio to set at different throttle settings.

spark plug gap .041 in or 1.1 mm

why havent you replaced the fuel filter, you should have done this first.

Hi

The problem is with your Idle Control Valve.

Look in the middle of the engine and you will see a plastic air box. Fastened to this will be the valve, a small cylinder with a wire connected to it, should be held on by 2 bolts

Undo the bolts and remove the valve. Spray WD40 into the two holes until it runs clear then rinse with petrol and let it dry.

Replace and bobs your uncle, should work fine.

You can replace the item for around £25

check all of the vaccum lines and check for leak at the fuel injection unit and for leaks at the intake manifold also make sure the spark plugs are at the right gap and change the fuel filter and here is a couple of website to checout www.autozone.com and www.alldatadiy.com and i forgot one www.taurusclub.com and i hope i have been some help to you Michigan Man.

You know, lookinig at this problem more, you have more possibilities of what may be wrong:

1. Your idle speed may be incorrect
2. Fuel filter may be clogged or water and impurities in your fuel system
3. Possible damaged coil pack or wires
4. Emissions sytem components faulty (a sensor, catalytic converter, muffler, etc.)
5. Faulty or incorrect gapped spark plugs
6. A vacuum leak at the intake manifold or vacuum hoses (check the hoses for cracks or damage)
7. Fuel injection or engine control systems malfunction (ECM)

This should keep you busy....at least with the easy stuff to inspect.

hello on the back side of the intake there is a pcv valve hose that detiareates and causes a vacuum leak.causing stalling shaking ect.hope this was helpful

1.3mm