From: ben91932 on 23 Jul 2010 15:55
> Wires. I used genuine Autozone "DuraCrap" wires, so this was the second
> thing that popped into my head.
I'd start by misting the plug wires with the engine running and watch
for a light show.
Like someone said, it may be worth unplugging the egr valve and test
From: larry moe 'n curly on 23 Jul 2010 17:37
Ray O wrote:
> I second the carbon buildup on the valves. Hook up a vacuum gauge, and when
> the problem is occurring, see if vacuum drops. If the Techron doesn't work,
> find a shop with Motor-Vac or that has a way to do the walnut shell blast.
> As Tegger mentioned, the EGR is also a possibility, but not likely to cause
> the seemingly random other than heat symptoms you're describing.
This YouTube video features wealthy Americans discussing carbon on the
From: Hachiroku ハチロク on 23 Jul 2010 20:05
On Fri, 23 Jul 2010 02:15:14 -0400, JoeSpareBedroom wrote:
> "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message
>> On Thu, 22 Jul 2010 22:08:48 -0400, JoeSpareBedroom wrote:
>>> "Hachiroku ????" <Trueno(a)e86.GTS> wrote in message
>>>> The car in this case is a 1989 Mazda 626. It was running great until the
>>>> day before yesterday, and turned 190,000 miles last week.
>>>> AT highway speeds it hesitates only a little bit, unless you start going
>>>> up a hill, then it starts sputtering. Normal around town driving, not so
>>>> much, unless you're going up a hill in third gear.
>>> It means something's not right.
>> Gee! Uh, thanks, Joe!
> Go ahead and try to prove that I'm wrong.
By golly, this time he's 100% correct!!!
From: Hachiroku ハチロク on 23 Jul 2010 20:07
On Fri, 23 Jul 2010 09:05:19 -0400, Scott Dorsey wrote:
> Ray O <rokigawa(a)NOSPAMtristarassociates.com> wrote:
>>I second the carbon buildup on the valves. Hook up a vacuum gauge, and when
>>the problem is occurring, see if vacuum drops. If the Techron doesn't work,
>>find a shop with Motor-Vac or that has a way to do the walnut shell blast.
> The original poster mentioned using high-test gasoline in it just because
> it was cheap right now.
> If you run enough high-test in an engine designed with fairly low compression,
> you're apt to wind up with carbon deposits as a result.
I always thought it was just the opposite!
This car ran the best on mid-grade. The next fill up I am going to fill it
with mid grade. I did so much running the last couple days it's at about a
quarter tank now...
And another bottle of Techron.
From: Hachiroku ハチロク on 23 Jul 2010 21:10
On Thu, 22 Jul 2010 20:14:11 -0400, Hachiroku ハチロク wrote:
> I'll have to check Mazda's prices...on some parts they're less expensive
> than AZ. I'm betting on plug wires crapping out...
And they are...Mazda OEM wire set can be found on line from a Mazda dealer
for $19.99. AZ ValueCrap wires are $12. DuraCrap wires are $26. Denso
(Toyota's OEM vendor) are $22 and NGKs are $26. I can't remember what I
used (they were AutoZone) but I don't think they were ValueCraft...