I installed this MPFI manifold on my 91 Suburban, 350, VIN K, V2500.  
The motor has just finished being rebuilt, everything is new or made the
trip to the machine shop.  As far as I can tell, all wiring is good, I
have rechecked and even re wired just to be sure.  I wrote an ...

Hi, all.
I've got a 1998 2500 Van with a 5.0L engine that's generating a P0340
shortly after start and immediately again after it's cleared.  When it's
raining or very humid out it's running poorly, stalling, has no power.

Hi, all.
I've got a 1998 2500 Van with a 5.0L engine that's generating a P0340
shortly after start and immediately again after it's cleared.  When it's
raining or very humid out it's running poorly, stalling, has no power.

Did they eliminate the cabin air filters since '01? Bought an '06 Crew with
5.3 and traded in my '01 Z71 with the same 5.3, but I can't find any info on
cabin filters for my new truck. I didn't find them under the glove box when
I removed the cover and nothing in the manual.

On my 86 S10 4wd there is a loud clicking noise coming from the front axle.
It doesnt matter what gear or neutral the trans or transfer case is in.
Nothing changes it. Brakes and tires/wheels have been changed over time. No
change. Does anyone have any ideas?

  I've got  a 99 Express Van 3500 with the 5.7 engine and about 56k on the
clock.
Truck has always been maintained well, oil changes, etc.
Using Dexcool Coolant....

ok, i have a 1982 chevy scottsdale 6.2 liter diesel truck that wont
start, it has been sitting for a long while and i think it has
something to do with the starter, NEED HELP ASAP!!!

Is there a site that allows one to decode the VIN number of their vehicle?
It's a curiousity that has plagued me for years, but was forgotten until I
started looking for a late mode used/pre-owned vehicle.
TIA

Thought I'd ask for some advice:
After running for an hour or so, trans shifts hard (feels like something's
"kicking" the van in the rear). 1st to 2nd is really bad, 2nd to 3rd not so
bad.

Hey! My '99 Chevy Silverado 1500 LT Z71 makes this noise whenever it is
idling that sounds like a high-pitched chirp. And then whenever I start
accelerating I can hear a clicking noise. As I lift my foot off the gas
it decreases in frequency and once I take my foot off the gas the

When removing spark plugs from aluminum heads is it best for the heads
to be cold or warmed up?
-AJ

I have a 93gmc 5.7 V8  , on the intake manifold gaskets the rear two ports
are blocked off ,is this normal.
I remember when I took them off that the rear right was blocked off, but
cant remember if the rear left was.

My son has a '02 trailblazer with the 4.2 vortec. It sounds as if a camshaft
is broke, or maybe he dropped a valve. It is very loud inside the oil filler
neck when I listened through a hose, and not near as loud through the
dipstick tube The engine seems to run ok, and he says ...

Based on info received here (and from a dealer), I thought I understood
that an '06 3500SRW truck has ONE additional rear leaf spring per side
on the rear axle. But here's another opinion:
" The common approach is to add an additional leaf to an existing spring

Here's a strange one (as are most electrical probs it seems).
If I run the A/C when it is hot outside, it will automatically go to
recirculate mode (where it stays) until I hit about 45 - 50 mph. then it
will go back to fresh which is where I have it set. (and no, I don't have