RE: 92 stalling and rough idle HELP!
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RE: 92 stalling and rough idle HELP! - 7/22/2006 7:04:37 PM
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erock92kota
Posts: 200
Joined: 5/20/2006
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I was wondering about one other thing today. The little piece of tin. I believe its the interuptor for the distributor pickup. Is the position of that gap important. When I pulled my distributor apart, the interuptor was moving around a lil bit. I used a lil rtv silicone to hold it down but it is possible I didnt position it dead on where its supposed to be. I cant seem to find just this part anywhere. You have to buy the whole distributor around here. All you have to do to get this piece off is pull the distibutor, drive a pin out and it slides right off the shaft. I am just wondering if this is the problem or not.
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RE: 92 stalling and rough idle HELP! - 7/23/2006 8:17:25 AM
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erock92kota
Posts: 200
Joined: 5/20/2006
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I have a brand new crank sensor on the way. The last one I got from a junk yard off a good running truck. The owner is a friend of my uncles so I didnt pay anything for it. Other then that everything else I have bought was brand new.
It runs rough all the time I guess. It starts up fine when it's cold and runs beautiful for a min or so. Then it dies off. It doesnt even run long enough to get it out of the drive way. I think I will have a look see at the flywheel tho. I am running out of options. I really need to get this truck runnin one way or another.
I'm glad this helped someone thoough.
< Message edited by erock92kota -- 7/23/2006 8:18:15 AM >
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RE: 92 stalling and rough idle HELP! - 7/24/2006 5:23:25 AM
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gb6491
Posts: 98
Joined: 1/6/2006
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quote:
ORIGINAL: erock92kota
I was wondering about one other thing today. The little piece of tin. I believe its the interuptor for the distributor pickup. Is the position of that gap important. When I pulled my distributor apart, the interuptor was moving around a lil bit. I used a lil rtv silicone to hold it down but it is possible I didnt position it dead on where its supposed to be. I cant seem to find just this part anywhere. You have to buy the whole distributor around here. All you have to do to get this piece off is pull the distibutor, drive a pin out and it slides right off the shaft. I am just wondering if this is the problem or not.
I would think pretty important to your timing as they determine when the the hall effect switch turns on and I imagine this occurs at a certain cam position. If they are off some maybe the controller tries to adjust the timing and loses all signal from the distributor which should cause shutdown.
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RE: 92 stalling and rough idle HELP! - 7/24/2006 6:21:29 AM
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erock92kota
Posts: 200
Joined: 5/20/2006
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That kind of what I have been thinking. I think I'll just find a distributor and throw that on too.
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RE: 92 stalling and rough idle HELP! - 7/25/2006 9:53:32 PM
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erock92kota
Posts: 200
Joined: 5/20/2006
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Brand new crank sensor. Idled for approximately 20 mins. Then I gave it gas......it died. Started back up.......same deal. Give it gas and she dies after a couple mins. I'm buying a new distributor for it. Hopefully soon. It definitly seems like a timing thing and I just wonder about that interuptor in the dist. not being in exactly the right spot.
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RE: 92 stalling and rough idle - 8/8/2006 4:29:57 PM
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erock92kota
Posts: 200
Joined: 5/20/2006
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Brand spankin new distributor and timing chain now.....still no workie workie. Pulled the plugs again last night. They are covered in black soot. To much gas........? Pulled the 02 sensor, Its all covered too. Would the oxygen sensor send a signal to the puter to keep dumping fuel if its covered in soot or not reading properly causing my truck to die? When I unhook the one vacuum line and let more air in the intake it runs a lil better but not 100 percent. Still dies eventually. I hit the gas while its running and it hesitates then rpms go up. I cleaned the o2 sensor all up today and I am gonna throw it back in tonight. I guess we will see what happens.
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RE: 92 stalling and rough idle - 8/10/2006 9:23:13 PM
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erock92kota
Posts: 200
Joined: 5/20/2006
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Well tonight for shits n giggles I ripped the front off my engine. Guess what I found????? The timing chain has about 7 degrees of play in it. Nice.
All this time........a lesson learned. Just because you set the damper at top dead center on number one, then line up the distributor to number one, doesnt mean the timing is always dead on.
I would indeed like to thank everyone for all their responses. They have been helpful in making me think about things that may be wrong. During this endeavor I have learned so much about these engines that I almost feel like I designed it myself.
Tomorrow I am going to the parts store after work af picking myself up a new timing chain set and slappin that in there. Im guessing that this will fix the problem. There is only supposed to be about an 1/8th inch of play at most and well 7 degrees.....thats about an inch.
I wish I would of followed my gut in the first place and saved myself a bundle of money. I have never been the greatest troubleshooter but all the neato tools I have picked up and the new dakota wing in my brain make it worth while.
At least now I shouldnt have any trouble with it for a while  ....knock on wood...short lil prayer.....
Almost everyting under the hood is new aside from major engine componets.
No I never did go buy a new speed distance sensor.....but I really thought about it.
Well I look forward to talking to all of you in the future on here.
Thanks a bunch,
Eric
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RE: 92 stalling and rough idle - 8/10/2006 9:40:49 PM
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gb6491
Posts: 98
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Eric,
Thanks for keeping us up to date on this repair. It has been a very informative thread.
Regards,
Greg
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RE: 92 stalling and rough idle - 8/10/2006 11:33:33 PM
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dodgerules86
Posts: 2712
Joined: 12/25/2003
From: Sycamore, Illinois (displaced to Arkansas)
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Let us know how the installation of the new timing chain goes, but glad to hear you finally found the problem!
I've got some projects of my own: valve cover gaskets, starter, master cylinder and brake booster, and (found this out a few hours ago) A/C compressor (having no A/C is not fun).
_____________________________
Current ride: Belleville 220 DES ST - leather, reinforced front end, tan color. Runs on ''alternative fuel'' :)
1996 Dodge Dakota
1986 Honda Civic CRX
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RE: 92 stalling and rough idle - 8/11/2006 9:30:39 PM
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erock92kota
Posts: 200
Joined: 5/20/2006
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Well I replaced the timing chain today after work. I just got done buttoning the engine back together about 45 mins ago. I didnt think it was too bad. Roughly 7 hours to swap a timing chain. But it still seems to be dumping way too much gas into the engine. It hesitates something feirce when I blip the throttle after shes warmed up. Then it flooded itself out.
I pulled the dist. cap off to see if the mark and the rotor will still aligned at #1tdc.
Check.
Pull plugs, give them a cleaning, regap, pop them back in.
Check.
Let it sit for a bit, turned the key, vroom she fired back up. So I let it run long enough to get warm and topped off the cooling system. Turned it off and changed the oil and oil filter. Checked the tire pressures. Got back in and started it up. Backed it out of the driveway. I managed to get about an 1/8 of a mile up the road and it started to buck, sputter, choke, and damn near died on me. It was all I could do to get it turned around and heading for home. Then I couldnt even get it up into second gear because when I would push the go pedal down she would buck and sputter. Felt more like a rodeo ride then a cruise in the ol' kota. But that first few moments of pulling out of the drive way all the way up to third gear it felt great again.
So I think tomorrow I will go get a new o2 sensor. I think the black sooty substance I tried to clean off the one in there now may have ruined it. My buddy tried to tell me you can clean them and then demonstrated this with some brake parts cleaner, a lil kerosene, and a torch........I think it may be ruined. I was just gonna try to blow it off with some comressed air.
I do however have a question about the throttle sensor I replaced. Were the 94 throttle sensors the same as 92. I was going through my reciepts and noticed that I bought a 92 throttle sensor and not a 94. The engine in my truck is a 94. Just my curiosity. I guess I could do a lil research and answer that question for myself.
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Printable Version
Any way I had borrowed a high end scanner and decided I would use it to go through the whole thing. Quite a fancy piece of electronics. It could test all the relays and solonoids without removing them. I spent several hours today putting it through a barrage of tests. It also has a graphing function on it that helped me narrow down the problem. What I found was the timing was running at about 10 deg at idle and all of a sudden it would get rough and move up to 25 deg and some times to 45 deg and then cut out. The graph showed the timing to be very erratic. Any way, using the trouble shooting option on the scanner it pointed to the crankshaft sensor. It said to check the flywheel for damage or dirt as this would cause the sensor to give errors. I removed the sensor which was filthy and replaced it and it solved the problem. 
The timing graph is nice and smooth now with clear cut changes at rpm changes. By the way the scanner had the following specs for the fuel system. I checked these on mine and they were within these parameters. Fuel system pressure with vacum hose to fuel pressure regulator disconnected - 39.0 - 41.0 psi. With vacum hose connected - 31.0 psi. Fuel pump pressure 75 psi. Not sure if any of this will help at all, but thanks for all the posts it sure helped me. I know you have changed the crank sensor on yours but you may want to check for dirt or damage to your flywheel. Does yours run rough all the time or is it intermittent?
At least they have different part numbers at a couple of different auto parts stores online. Ill be picking up one of those tomorrow too. But this time I'll be sure to get the right one.
