when to replace spark plugs?

when to replace spark plugs?

Postby Duck Hunter [OP] » August 21st 2010, 6:46pm

I got the Astro van 2 year ago every thing seem to run real good and never had any problems at all and still runs good now,
do you guys think I should pull and check spark plugs, and do any of you use those spark plugs that are like a V on bottom?
what's best spark plug for good MPG, I still get like 24 MPG on the van and axel gear is 3.42..

:layrubber:

this van is every day use and times when I go down long 200 miles drive on weekend.
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Re: when to replace spark plugs?

Postby LEVE » August 21st 2010, 7:04pm

If it ain't broke... don't fix it.

Plugs last a long time if they're cleaned, re-gaped and reinstalled. Unless there's a miss on a cylinder I wouldn't touch the plugs.
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Re: when to replace spark plugs?

Postby Duck Hunter [OP] » August 21st 2010, 7:24pm

LEVE wrote:If it ain't broke... don't fix it.

Plugs last a long time if they're cleaned, re-gaped and reinstalled. Unless there's a miss on a cylinder I wouldn't touch the plugs.


yeah I would need some one with good hearing than mine hearing if engine is running good, :confused:

I had hearing loss at age 5, my brother in law in AZ is good at hearing engines and air planes :banana: :bow: only problem he's 24 hrs from where I am :shrug: :crying:

why should I move to Tucson AZ?? I need a vote.. and yes be nice be around my Sister's family and 4 kids.. :think:
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Tires 225-70-15R BFGoodRich Long Trail T/A
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Re: when to replace spark plugs?

Postby Mr_Bowtie » August 21st 2010, 9:15pm

X2 if its running good and no problems accelerating or anything.....don't bother. A/C Delco plugs are the best!
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Re: when to replace spark plugs?

Postby jeff's93astro » August 21st 2010, 10:41pm

Not sure when to replace them but i change mine every year.
But i can get the AC Delcos for a $1.50
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Re: when to replace spark plugs?

Postby Lumpy » August 31st 2010, 3:42am

Duck Hunter wrote:
...I still get like 24 MPG on the van and axel gear is 3.42...



If you're getting 24, I wouldn't dare touch a thing for fear of your van
finding out it's not supposed to be that good... :banana:


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Re: when to replace spark plugs?

Postby RECox286 » September 21st 2010, 4:29am

The other day I called the warehouse guy and said: "Ive got a problem with this ceiling fan, wait a minute, I'll hold the cell phone close to it......There, did you hear it? What do you think? It came from your store.

Maybe you could call your brother-in-law... Well, it's a thought.

Bob

On the up and up, plugs take one hell of a beating: heat, pressure, deposits, you name it. Anymore I sound like an advertisement for Bosch Plus 4's. They ain't cheap, and they do a superb job. I change them at 100k mi intervals, needed or not. (Even then, they still look to be in good shape.)
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Re: when to replace spark plugs?

Postby hardlecure » September 21st 2010, 4:50am

i replace the rotor, cap, wires and plugs every 12-18 months. Not that they need it. I just do it to keep my van running as best as possible.

Thought it might be overkill, I put in mobile 1 with lucas oil stabilizer at each oil change (every 3 months regardless of mileage), tranny flush every 12 months, with synthetic tranny fluid and lucas tranny additive as well. I also like to get into the habbit of changing the coolant every 24 months.

But since my van is now going on 15 years old I'm going to replace the ignition control module and the coil during the next tune up (a couple months)

Does your van really get 24mpg? That's unheard of.
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Re: when to replace spark plugs?

Postby Duck Hunter [OP] » June 11th 2012, 2:56am

hardlecure wrote:Does your van really get 24mpg? That's unheard of.


will check that again when we going out long trip.. the axel gear is 3.23..
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Re: when to replace spark plugs?

Postby chevymaher » June 11th 2012, 3:22am

LEVE wrote:If it ain't broke... don't fix it.

Plugs last a long time if they're cleaned, re-gaped and reinstalled. Unless there's a miss on a cylinder I wouldn't touch the plugs.


That is my maintenance schedule. It misses when I start it. Look in the cap white deposits. Yep it time. Cap rotor wires and plugs. First tune up lasted 80 thousand. And I had the cheap cap, not brass the aluminum. Then the motor blew up, oil cooler deal. I got all new when I rebuilt it. Got a bunch of fairly new tune up parts as spares now.
Now I won't worry about it till it misses in the morning. 10 years from now.
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Re: when to replace spark plugs?

Postby paintdrying » June 11th 2012, 3:32am

it really depends, I have a line of astros just waiting to be put on the road. i buy them very cheap, when something I really do not like happens, I hop in the next one in line. My last van, I waited way way to long. I spent around 300 dollars on a tune up. Was the best thing I could have ever done.
Right after the tune up I had my Mom in the van during a flood. I drove through puddle after deep puddle, not even a spudder.
Think, the better the van runs, the longer it will last. Two years, I would go ahead and do a major tune up.
If I have the time and money I throw it at the van. Then when it dies, everything goes to the next one in line.
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Re: when to replace spark plugs?

Postby rickley » October 25th 2012, 2:03am

I just bought my 93 GMC safari and have been going thru it. When I pulled the plugs I was amazed that it ran as good as it did for they were used up to the point that the gap was well past the end of any gauge I had. So I changed them......a fight to the finish to pull the 3 on the left side. :banghead:

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