Looks like I may be out of business..

When I made comments last night I had not known all that had been done to your van. Knowing what I do at this point I would think your issues are either EGR system, a vacuum leak or electrical. That leaves you with only about a million possible scenarios. It's easy to block an EGR valve of for testing purposes. A can of quick starting fluid (Ether) can be used to find the majority of external vacuum leaks, internal is a different story. Basically it's get it running, rev it slightly and point the ether at the gasket surfaces or potential air leak places making sure you're not shooting it directly towards the air inlet. Leaving the intake system hooked up helps keep the inlet isolated from the area you are working. If the RPM's change dramatically (you've in essence added a second fuel source to a lean condition) you'll spot the leak.

Since you've had the intake manifold off and worked on the throttle body these are good places to look for a vacuum leak. You can still pull a plug wire at a time and find out which cylinder is not contributing. This lets you focus on the air path of that cylinder should it be vacuum related. Don't forget to look at the little vacuum trees and all vacuum lines attached to the trees on the intake runners as well as the power booster vacuum source. I'll bet you can run this down.
 
I pulled the EGR twice to clean it. when I did repairs a while ago. It was carboned up pretty bad to the point where it didn't look useful. Ha. I reinstalled a gasket with a screen on it to help with the carbon.

I know a stuck EGR is like one huge vac leak for sure. I will grab the starting fluid and start spraying around all the vac hoses to see if I get a variation in the RMS...

Electrical.... Not sure I would even start to attempt that process.....


I'm at the point with the van right now where I do not want to look at it. I'm going to treat it like an EX Girlfriend and not even talk to it anymore!:rofl
Maybe in a little while when it can behave I will look under the hood. :gotcha:
 
Good for you Tex!!! If it ain't broke, run it till it is. J/K Let things get back to where you are not in panic mode then give it some more thought and I am sure you will figure it out.:bigups
 
Running an OBD1 code of 23 and 35

cannot figure out what code 23 is talking about....the print up from Autozone says:
Exhaust camshaft position actuator solenoid control bank 2

The ECM has detected a fault in the exhaust camshaft actuator solenoid control bank 2.
Probable cause:
-open or short condition bank 2 exhaust actuator solenoid circuit
-failed exhaust actuator solenoid circuit bank 2
- ECM fault


BUT, when I look online, it says:
Intake air temp sensor error (low temp indicated)

Code 35 from Autozone says:
O2 sensor heater condition-check repair resource for sensor location identification
Explanation: the power train control module controls the electrical circuit for the O2 sensor heater.
The computer has recognized a failure in this circuit
Probable Cause:
-Check circuit fuse
-Relay defective
-Check circuit wiring

But online it says code 35 is:
IDLE SPEED CONTROL (ISC) CIRCUIT
35 IAC problem or idle error


Got me....

I replaced the O2 sensor last year. All wires look good. No clue on the relay or fuse, couldn't find one.....
 
Wow...hang in there man. it sounds like you're up and running for the time being. Just stay positive and stay focused. Sounds like you've got quite a customer base and you sure don't want to lose them...especially with the economy the way it is.

Again...stay positive and stay focused! The Man upstairs will always provide for you, one way or another.


:bigups
 
Good to hear your up and running Tex :yay. If you still make that vacation... as your coming through Oklahoma swing into T-Town and holla at a brotha.
 
I'm glad to hear that things are getting back on track somewhat. Get some jobs under your belt (read $$$$$$) and the rest will work out. Keep the faith baby, keep the faith.
 
Well, van ran like a one legged, cross eyed dog. Died a few times at the most inconvenient times. (at the gate at the military base, ON base at the gate to the air field, and at every other stoplight.)

Got to my appointment and my carpet extractor wasn't working!!!! Well, the vac wouldn't come on. Then my pressure washer hose blew out! I got soaked. Not wet, but soaked. Like when your shirt sticks to you when you get out of a pool with it on. oOt to mention my socks...
And on top of that, we had some good winds today that decided it would take a hand full of new rags and blow them out of my van...

Is this a sign to quit the business? Or a sign to start over fresh? Right now, I am tempted to trade my Van and my Car in for a Truck.

I LOVE working out of a Van. The best bar far, hands down. Though now I see what happens when your work vehicle goes down.....your business follows.

So, yea, I think I am now in the market to trade both of my vehicles for one truck and then buy a cargo trailer. That way if something goes wrong, I can rent a truck to pull my trailer (business) to where I have to go....
 
Glad to see you are back in biz, well sort of anyway. Sure hope you can resolve the problem or manage a new ride. Best of luck to you! You don't deserve this bad streak of luck.
 
I had a miss or stumble after my intake gasket went out on my 96 gmc safari, we did plugs,wires and the whole nine yards. Mine ended up being caused by a vaccum leak on some type of heater valve that was made of plastic, the housing had cracked, it got cracked during repair. After that it ran like a top.

I had a similar issue on a '94 Safari, ended up the intake manifold itself was cracked and needed replaced.

Tex, I hope they get you back up and running completely soon!
 
I'm back up and running! I'd say about 95% taken care of. Doesn't miss anymore and drives/idles fine.

Here's what I found. My #6 plug wire was cut. It was brand spankin new, not even a month ago. It was sliced down the middle like a hotdog bun then electrical taped back together. I replaced it with no change.

Climbed under the van last might while it was getting dark. Had it running in gear. (Someone was inside the van with their foot on the brake of course) There was an arc from the #1 plug to the heat shield on the exhaust manifold. The #1 plug, which was also brand new, was cracked, 2 cracks actually. I'm sort of pissed off about being down for 3 days and the shop not figuring out the problem, cutting my plug boot too.:mad: It still seems a little odd to me, and I cannot put my finger on it, there is something else going on.

But like I said, 95% fixed, drives GREAT now. Back in business!:bigups Still think I want to get rid of it. Now that it is running proper, I can get more out of it when I sell it. Heck, I would even trade it for a Cargo Trailer. Then take my car and use it as a down payment on a truck.... :hmmm:
 
That's my thought too..... :D

Van still has a very very very minor miss, but very random and not frequent. Seems like when I turn the AC on (giving the engine a load), it stumbles, pics up and off we go. Other than that, it died once, but drives like brand new. :hmmm:
 
When I eluded to the fact that this kind of problem shouldn't be too difficult to run down the things you mentioned are a given to have been checked by any technician worth his salt. Eliminating cylinders one by one to find out which ones are the problem is ground zero in a situation like this. Sorry Tex but you've got the wrong mechanic and it sounds like he could have cost you your business..
 
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