Oh boy! miss fixed - new problem

[decodave]

So while I went to replace the ign. mod. on the dist. I noticed on the top of the rotating ring piece , the one that is a piece of sheet metal rivited to something else below it & has a point sticking out for each cyl. Was broke & the section that had 2 of the 6 points on it was missing. Like the points representimg 2 cyls. for the hall sw.
So I'm wondering how it ever ran at all & hopeing I found the prob. So I put in a rebuilt Autozone stock dist., which looks alot diff. But ,gee itdon't have broken parts on it.
So it starts right up, shut it off ,then try to start it again & it acts like there's no spark, just cranks. Check spark,loud & clear.
try diff. settingson the idle trim pot ,thats with the DFI (this has helped in the past) no good.
Smells rich, pull a plug , not bad , still just cranks, change DFI for ECM, starts, AF meter jumping up & dn (alittle more than normal)
Hook up DFI ,idels ,acts better. Turn off , won't start , just cranks ( DFI was just fixed, by the way) put back ECM, starts, idles like crap, does stall. A/F not hardly showing. Drive it, idel bad, but misses are gone-HALAULA!!!!!!!!!!. Bearly idles, stalls , but does start right back up, this is the ECM not DFI.

So now :x 'm thinking O2 or knock sensor going nuts???

 

[nick041881]

did you check the timing? if i replaced the distibutor i would check the timing before i checked anything else. the distributor may look like its in the right spot but be off a couple degrees. you did mark a spot where the old rotor was pointing before you took it off didnt you?

 

[decodave]

I didn't check the timing, cause I can adjust it 5 deg either way in the cab, made no diff. Anyway would that make it so the DFI starts once & then not ,but the ECM starts fine always?

 

[nick041881]

if the timing is ok i would start wondering about the dis. itself or the ignition module. kinda hard to diagnose this one over the net...

 

[bdubb]

i wouldnt trust the autozone distro.

 

[TurboManiacal]

i wouldnt trust the autozone distro.

Did you put the box from the stock dis on the Autozone like you're 'posed to?

 

[decodave]

i wouldnt trust the autozone distro.

how so?

 

[decodave]

i wouldnt trust the autozone distro.

Did you put the box from the stock dis on the Autozone like you're 'posed to?

Box? U mean the ign. mod.? I'm not sure if the stock one is ok.

 

[sytydvr]

the ignition module from the autozone distro is an AC delco module...

 

[bdubb]

the ignition module from the autozone distro is an AC delco module...

are you sure? not doubting you, just wondering...

http://syty.net/phpBB2/viewtopic.php?t=25249&highlight=autozone

At the suggestion of a respected board member I cast aside my distaste for Auto Zone parts and purchased their distributor. I am very happy with it. Dont use the ignition module that comes with it though, get an AC Delco unit (also good advise from the respectable board member).

 

[sytydvr]

I pm Daron about this a few months ago he mentioned to change the ignition module from the autozone distro to an AC Module I followed his advice but upon doing so I realized that in fact the ignition module that I have is an AC delco module.... I guess autozone was getting many complaints on the distro and they decided to use a better module Im not sure when they made the factory change but I've had my distributor for about a year. But I guess I can recommend to double check the module to see if its an AC Delco one..

 

[decodave]

Is it white? The one that came on the dist I got from them is wht. but no names or anything.

 

[sytydvr]

the white piece is the pickup coil... the ignition module is a black piece that has an aluminum cover that says "warranty void if removed" it looks exactly like this
http://www.partsamerica.com/PartDet...ACD&MfrPartNumber=D1943A&PartType=194&PTSet=C

hope this helps

 

[ZMann]

Isnt a Ignition Module a Ignition Module? I went the cheap route and instead of buying the AC Delco one, i bought the cheaper one... GP Sorenson or somthing like that...

I have a 'no start' problem also, just cranks, no spark. But only when HOT.

No telling when it will act up.

Prob. should have bought the ac delco huh??

Zach Mann
Sy1012

 

[sytydvr]

Oh yeah definately should have bought a quality part.... Well I double checked my autozone distributor and its a ac delco ignition module unit.

 

[Guest]

autozone distributer

autozone distributer

I tried to buy a sy distributer at Autozone, the part they had listed is not the right. so I had to replace all the guts in the original one. Bill

 

[sytydvr]

Bill
How much was is to replace all the guts ?
this is the one for out trucks at kragen. autozone has it for $110
http://www.partsamerica.com/PartDet...A1C&MfrPartNumber=301635&PartType=218&PTSet=A

 

[bdubb]

great info. thanks Joe. like i said, i wasnt sure because i remember daron posted about it a while back. thanks for the clearup!