changed plugs and oil ses light still on

[psycho91]

So I changed the plugs, I put in the recommended 41-103 acdelco's, I also did an oil change

My problem is I had to ride around with misfiring plugs for about two weeks I also found out that I have been riding around with little oil for probably about that long as well

Well after all that it has a rough idle and when I come to an almost complete stop and when I lift off the break to accelerate there is a slight jerking, and my motor makes a slight blurp like noise until about 45 but you have to listen for it, after 45 it runs fine

Have I caused permanent damage to my motor, it had all these symptoms before I changed everything but they were worse

 

[Matt]

When you changed the plugs, did you also clean the throttle body and leave the battery disconnected for at least 30 minutes? Also, did you make sure your coil packs were seated properly? The slight bump sensation means you need to grease the slip yoke...mine did the same, it happens and that is the fix.

 

[psycho91]

I have yet to clean my throttle body I need to, where is the slip yoke located

 

[The_Roadie]

where is the slip yoke located

Front of the driveshaft where it enters the transfer case or transmission. It will only help a specific issue of coming to a stop, THEN a feeling of being bumped from behind as the driveline relieves a bit of stress from the stop. I don't think it's your problem. More reading: Feeling of being bumped when stopped [Archive] - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

 

[psycho91]

Yeah I realized that after I posted it, mine isn't 4x4, also how would I know if the coil packs are seated correctly

 

[Matt]

Can you get the codes read...that should give an indication of why the ses light is on. If it's a P030X code (X being a number from 1-6) then it's likely a coil pack.

 

[psycho91]

I plan on getting it scanned asap

 

[Opeth]

Get codes read from what cylinder is missing.
Swap known working coil with cylinder that's throwing code, unhook battery for 30 mins.
If the CEL comes back, the DTC should have moved to the new location if it's a bad coil.

.... If not, compression check and pray for the best.

I just went through this worm hole, had to get a new head installed to the tune of $4k. Warranty covered most of it luckily.

 

[psycho91]

It was unplugged for I know a good hour, I went out on my lunch and just turned the key to turn the radio on but never started the truck, I will unhook it 30 min before I leave and see if anything changes when I actually start it to leave work

 

[psycho91]

Had it scanned and the only thing it told me was I had multiple misfires, could the plugs be pit in to deep, or is there a way to tell what coil packs are bad or if there not seated right

 

[MacMan]

Had it scanned and the only thing it told me was I had multiple misfires, could the plugs be pit in to deep, or is there a way to tell what coil packs are bad or if there not seated right

You cannot put the plugs in too deep.

As for the mult. misfires, have you tried removing & re-seating the coils making VERY sure you put them back in straight....if the spring doesn't hit the top of the plug perfectly, misfires will result.

If this doesn't change anything, I'm guessing you have one or more coil packs that are totally shot. Only real way to fix it is to get at least 1 new coil pack (preferably 2), and start with from the front cylinder and swap out the old with the new and see if that solves it.

 

[psycho91]

Checked the coil packs and found out I had a bad coil pack, my stepdad didn't check the rearmost one though cause he couldn't reach it, ill check it tomarow morning just to be on the safe side, I'm hoping this is the end of this nightmare, lol

 

[The_Roadie]

...the end of this nightmare, lol

Ah, you're not living a nightmare, grasshopper. Go 10 miles off pavement, 70 miles from the nearest town with an auto parts store, and break a tie rod end and your spare is home safe in your workshop 250 miles away, or be 20 miles up a mountain and break your differential and have to pull yourself to a Motel 6 using your front wheels only and figure out how to get 850 miles back home while you're between jobs to change out the axle, or drive 1800 miles to Ellington, Missouri and lead a trail ride that ends up at dusk with 25 people in about 12 trucks lost in a national forest without a guaranteed shortest path back to civilization and dinner because there's not many restaurants open after dark in dueling banjo country and they're thinking about stringing YOU up to punish the arrogant Californian - now THAT'S a nightmare.

 

[psycho91]

Ah, you're not living a nightmare, grasshopper. Go 10 miles off pavement, 70 miles from the nearest town with an auto parts store, and break a tie rod end and your spare is home safe in your workshop 250 miles away, or be 20 miles up a mountain and break your differential and have to pull yourself to a Motel 6 using your front wheels only and figure out how to get 850 miles back home while you're between jobs to change out the axle, or drive 1800 miles to Ellington, Missouri and lead a trail ride that ends up at dusk with 25 people in about 12 trucks lost in a national forest without a guaranteed shortest path back to civilization and dinner because there's not many restaurants open after dark in dueling banjo country and they're thinking about stringing YOU up to punish the arrogant Californian - now THAT'S a nightmare.

Lmfao, now that's funny, now that its all over and done with, I will agree with you on this one Roadie, IV been in a couple situations like that with my old Geo tracker, me and my bro sunk it a few times out in the middle of no where wondering how in the hell we were going to get out, not as bad as your situations though

 

[Mark20]

... in dueling banjo country...

Paddle faster, I hear banjo music.