97 chevy s10 4.3 L

Asked by Mar 29, 2017 at 08:54 PM about the 1997 Chevrolet S-10 LS Extended Cab 4WD

Question type: Maintenance & Repair

Changed out ... Icm.. Enginr coil... New wires. New
plugs...cleaned out throttle. Body hellllp

23 Answers


No spark? Next would be the crankshaft sensor.

Rowefest..... Thank u sir..... Yehhh i got pressure in gas take... But i will give that a shot... Appreciate the answer..... Will that affect not getting fire to plugs.... Yehhh got me baffled


Yes it would cause a no spark condition, but a common problem also is the connection. Make sure the connectors are making good contact at the plugin.

Thank u... U my heroooo....i will check it

Okay rowefast.... I took advice and i changed the crankshaft sensor.... I got nada..... Just wanna take all the parts back...lol any other suggestions? Id appreciate it


Sorry, should have told you more...like check the cap and rotor, especially the rotor, look on the underneath side of it in the middle to see if there is a burn mark. Spark would travel threw there to ground and not fire. Look at the cap also at where it makes contact with the rotor, may be burnt up. Also check to see if there is power to the coil.

Okay sir..... I dee the burn mark in the moddle... Ill clean that and new rotor new cap... New wires... New ign coil... New controle module...


The tires don't have anything to do with that...lol.. If there is a burn mark on the underneath side of the rotor, there is no cleaning to be done, just replace the rotor. At least that is cheap. Just look to see if these are bad, cap & rotor. The thing is these things you have replaced probably need it anyway for the age of the truck.

Yehhh okay i will do that....thank u very much..ill let u know what happens

Okay it has a black mark underneath the cap... ... Rotor is in good condition... Is that what u mean?


Can you post a picture of it, like how bad...

Its just like it came.... A black piece in themiddle ... In the center.. Came like that when bought.... Did i get a wrong. One perhaps...?


No, its good, that is just the contact. Everything sounds good there, but pull the ignition control module and have it tested. Also there should be 2 wires that run to the center pick-up coil, gently pull on them to make sure there not broken.

Okay.. Ignition module... Is brand new as well.... Hmmmm maybe that is faulty


Did it run with new ICM in there, and sorry, I see that you changed it. Just to check see if you can spin the rotor when it is mounted in place, it should not turn. You wouldn't have access to a scanner would you? And where the wires not spongy when you gently pulled on them on the pick-up coil?


Whats left...check to see if there is power to the coil. And usually this does not go bad but there is a camshaft sensor. There should be a way to test this, check with the auto parts store. But if there is no power to the coil, then things are pointing to the ECM. Double check all the connections, and at the ECM. May have lost its ground and just a matter of unplugging it and plugging the connector would be enough to make contact.

Okay i will have the next thing to do

Okay still nada... Cranks and no spark still.... And heres another thing... I put in the diagnostic tool in the plugin.... That gives no power or nothing..... ECM maybe??


No power to the coil? And the ALDL connector port for your scanner has a power wire that runs from the battery, or at least is hooked into a battery circuit, not the ECM.

1 people found this helpful.

Okay... Well i took the the ECM off... All the wires ..the relays off... Cleaned them up.... Well see what happens...okay im gonna have to look to whrre i can grt power to it.....im ready to shooot this and bury it

'Rowefest Could it be the battery??? Its a used battery......


Doesn't the battery turning the engine over?


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