Question about 1993 Chevrolet Suburban

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1993 chevy suburban, engine has been popping and skipping now has stopped running at all, could it be the distributor cap and rotor button have gone bad ?

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Its possible it needs tune up but also check the timing. alot of chevy's spit and pop and when you shut them off and go to start later they wont, this is when the timing cam gear goes bad and out of time. turn crank to top dead center (TDC) on timing mark on front of engine cover or tab first, then remove dist cap and notice where the supply point of the rotor is facing. is it pointing to the # cylinder (very front of motor on the driver side)? Or is it aiming to the plug wire location on the dist cap that goes to the # 1 spark plug. ( the front plug on the driver side of motor )? If neither of these are in line then timing is out of wak. If it's all good then check plugs for old worn or burnt electrodes then check rotor with multi testor for current travel, then check cap for electrode failure and then check plug wires for current loss and burn. then perform a compression check on motor. (dry & wet)

Posted on Apr 04, 2011

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I have a miss in a 5.7 chevy replaced plugs wires timing chain mass air flagging 1,2 and 3 all have 180 compression also replaced distributor new cap and button


What year? Does it have a distributor? If so, possible distributor cap/rotor issue. If coil over plug, you need to run a compression test to see if a cylinder is weak/valve issue

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1993 7 suburban doesn't start wants to but it doesn't start all the way and it makes a funny noise


Hard to say anything about the 'funny noise'.

The engine needs fuel, air, and spark to start and run. If any of these are lacking then it won't.

I would first remove a spark plug from each side of the engine to see what MAY be going on. If the spark plugs are wet with fuel, then I would lean towards it being an ignition problem.

If they are dry, then it could possibly be a fuel problem.

You could also remove the distributor cap to see if there is corrosion on the terminals of the cap and rotor.

I had to rescue a GM vehicle a few years ago that quit running going down the road. The engine acted like it wanted to start but just wouldn't. I did the above suggested checks and it turned out to be the distributor cap and rotor were both corroded to the point of not allowing the spark to get to the spark plug wires. New cap and rotor and it started right up and has been running ever since.

Hope this helps.

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1 Answer

1993 Chevy Suburban will not start and has no spark


Check all fuses under the hood. Test the coil with an ohmmeter. Check for battery voltage on the coil primary with key on.
If all good, suspect the crank position sensor. A bad sensor will cause no spark.

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check inside distributor cap for wear and corrosion.in center of cap there is a carbon button that contacts rotor look carefully at that.make sure wires to distributor tight.if looks good remove ignition modual from bottom of distributor(black sorta retangular)most part stores can test it for small fee.those moduals with fail without warning.

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What is the timing specs for a chevy 98 suburban V8 350 gas.


The ignition timing is not adjusted with a timing light or with the engine running, and to set the ignition timing follow these proceedures.

There is a mark or notch on the distributor housing that the rotor should be pointing to when the engine is on top dead center. This "static" timing is all that matters and the computer will be able to control the timing as long as the ignition rotor is in that position when the engine is at top dead center.

1. Place the engine at top dead center.

2. Look under the distributor cap and find where the number one terminal runs under the distributor cap, and where that position on the distributor cap corresponds with the distributor housing, and it should match up to a mark or a notch on the distributor housing indicating the number one position.

3. With the engine on top dead center the ignition rotor should be pointing to the number one mark or notch that is on the distributor housing, if it is not then loosen up the distributor and turn the distributor until the ignition rotor is pointing to the mark or notch on the distributor housing and then tighten down the distributor, the engine should now be static timed.

If the distributor can not be turned enough to align the ignition rotor with the number one mark on the distributor housing, or the distributor does not set properly and will not allow the installation of the spark plug wires then the distributor is not installed correctly and is most likely a tooth off and it will need to be re-installed correctly. (The distributor should set like it is shown in the firing order diagram when it is properly installed)

Here is a firing order diagram to also help assist you.


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I need the correct spark plug wiring diagram for a chevy 350 5.7 kiter v8. the wires are already off.


Firing order is 1-8-4-3-6-5-7-2 and the rotor turns for clockwise. If you look at the distributor cap the Above

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1 Answer

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The firing order for a Chevy s10 depends on which engine you have. 1.9L engine the firing order is: 1-3-4-2 . Distributor rotates counterclockwise. 2.0L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise. 2.5L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise. 2.8L engine the firing order is: 1-2-3-4-5-6 . Distributor rotates clockwise. 4.3L engine the firing order is: 1-6-5-4-3-2 . Distributor rotates clockwise.

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