help with Strange result from partial tune up

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help with Strange result from partial tune up

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Chevrolet >> Chevy Trucks, Vans & SUV's >> S-10 & Blazer >> help with Strange result from partial tune up

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help with Strange result from partial tune up - 5/22/2006 12:02:40 PM

rynow

Posts: 2
Joined: 5/17/2006
Status: offline

I did a partial tune up on my 1990 4.3 S10.
i am definately a novice at this. and need some help

By partial i mean:
rotor cap replaced
new wires
new plugs (gaped properly)
I couldn't relpace the two hard to reach ones on the right) by the steering column.

I also sprayed a lot of carb cleaner into the carb as it was really dirty.
(while was running and accelerated as per directions)

after

The truck excelerates well and runs great. BUT
When i come to a stop the engines idle is kinda weird.

It seems kind a hesitant and jerky. but then resumes good idle.
I also noticed a faint ticking sound that wasn't there before.

Could it be all that carb cleaner blastng out all that gunk?
I haven't replaced the fuel filter yet.

any help or advice wol be great

Post #: 1

RE: help with Strange result from partial tune up - 5/22/2006 4:12:18 PM

Nomad76lj

Posts: 519
Joined: 4/21/2006
Status: offline

to do the two on that side its best to take out the iner fender and go in that way that also why its idling rough i would bet.

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if every thing is under control your driving to slow
99 chevy bazer 196 000kms 4.3 v6
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87 chevy 1/2 ton 245 000 kms 305 v8
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(in reply to rynow)

Post #: 2

RE: help with Strange result from partial tune up - 5/23/2006 12:41:04 PM

Chevrolettruckman8

Posts: 30
Joined: 5/16/2006
Status: offline

ill bet its the two wires, the new ones transfer the charge faster and more evenly so you hav 4 cyl running good and tow that are behind because of older wires, and if you didnt do thoes wire i doubt you did the plugs, thoes two old ones are probly fouling up the idling.........same with cruising if you have done that at all

(in reply to Nomad76lj)

Post #: 3

RE: help with Strange result from partial tune up - 6/13/2006 2:25:56 PM

Revredneck

Posts: 20
Joined: 6/2/2006
Status: offline

First of all, those two plugs can be reached if you jack up the driver's side and reach through the opening in the wheel house over the wheel with a long extension on your socket (a "wobble" extension usually works best). I would double check the firing order at the cap and the plugs. It's 1-6-5-4-3-2, turning clockwise. Driver's side is 1-3-5 from front, passenger side is 2-4-6 from the front. HTH.
Good Luck and God Bless,
Revredneck

(in reply to rynow)

Post #: 4

RE: help with Strange result from partial tune up - 7/3/2006 8:24:05 PM

kcb37

Posts: 504
Joined: 7/3/2006
Status: offline

I have a 91 4.3 4x4, I did my d/s with a spark plug socket, 3/4 socket, u-joint, extention, and ratchet. You can do it, and will learn you have to get creative sometimes. I would get the rest of the plugs changed, then go with a fuel filter. If it is really bad it could be a knock sensor but your engine light should be on for that.

(in reply to Revredneck)

Post #: 5