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2000 Dodge Ram 1500 running rough. . . .sometimes. #811834 09/22/10 03:07 PM 09/22/10 03:07 PM
Joined: May 2007 Posts: 166 Grandville, Michigan D Dustya440 OP member
Dustya440 OP member D Joined: May 2007 Posts: 166 Grandville, Michigan	I�m hoping someone here can help me. I have a 2000 Dodge Ram 1500 pick up, 5.9 auto with 200,000 mi. on it. Recently it has had a tranny rebuilt and the heads redone. The injectors were also cleaned. It runs like a top most of time. . . . most of time. Sometimes when I�m driving it, it starts to spit and buck. You can�t accelerate cause it just pops and has no power. If I pull over into a parking lot and put it in neutral and rev the heck out of it finally quits bogging, does a few pops and then acts like nothing ever went wrong. No lights on the dash ever come on. It started to do this before I have the heads done along with new ox sensors. Any ideas? It�s getting harder and harder to trust the truck. 1969 Road Runner J Code 1970 Road Runner VOA 1971 Dart Swinger 1971 Cuda Vert 1973 Duster Pro Street 2003 Z06

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: Dustya440] #811835 09/22/10 09:04 PM 09/22/10 09:04 PM
Joined: Feb 2009 Posts: 327 wisconsin M mod381 enthusiast
mod381 enthusiast M Joined: Feb 2009 Posts: 327 wisconsin	Does the cat converter rattle,or possibly plugging up?

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: Dustya440] #811836 09/22/10 09:27 PM 09/22/10 09:27 PM
Joined: Feb 2007 Posts: 2,315 MOPAR HEADQUARTERS IN ALDEN NY H hemigod426 top fuel
hemigod426 top fuel H Joined: Feb 2007 Posts: 2,315 MOPAR HEADQUARTERS IN ALDEN NY	cap/rotor/plugs/wires first, the caps on those have corrosion from rain water cause were they sit MOPAR OR NO CAR

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: Dustya440] #811837 09/22/10 09:31 PM 09/22/10 09:31 PM
Joined: Jan 2003 Posts: 292 Atlanta DartGTX enthusiast
DartGTX enthusiast Joined: Jan 2003 Posts: 292 Atlanta	Check the dist. bushing in the block and the teeth on the dist. gear

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: DartGTX] #811838 09/22/10 09:38 PM 09/22/10 09:38 PM
Joined: Aug 2003 Posts: 1,062 Amherst,NY challengermike super stock
challengermike super stock Joined: Aug 2003 Posts: 1,062 Amherst,NY	Could be te crank sensor starting to go.

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: challengermike] #811839 09/22/10 09:42 PM 09/22/10 09:42 PM
Joined: Apr 2004 Posts: 526 Marilla, New York R RalleyA12 mopar
RalleyA12 mopar R Joined: Apr 2004 Posts: 526 Marilla, New York	Quote: Could be the crank sensor starting to go. Had that problem with my 2001. Crank sensor fixed it right up.

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: RalleyA12] #811840 09/22/10 09:52 PM 09/22/10 09:52 PM
Joined: Feb 2007 Posts: 2,315 MOPAR HEADQUARTERS IN ALDEN NY H hemigod426 top fuel
hemigod426 top fuel H Joined: Feb 2007 Posts: 2,315 MOPAR HEADQUARTERS IN ALDEN NY	Quote: Quote: Could be the crank sensor starting to go. Had that problem with my 2001. Crank sensor fixed it right up. his has 200k should have done it. my 2000 and 2001 went at 88k and 95k, still remember that cause both times were in snow storms and plows on,fixed both in lot. if you have a scanner crank sensors mostly fail when trucks hot magnet in sensor has crack and opens up, they radical missfire scanner will show it. truck cools down to ambient temp will run fine till it opens up again with full temp.if not done give it a shot 2 10 mm bolts hold it in by bell flange behind pass head. sucks cause they sieze in from heat MOPAR OR NO CAR

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: Dustya440] #811841 09/22/10 11:30 PM 09/22/10 11:30 PM
Joined: Jul 2003 Posts: 6,167 Maryland GO_Fish master
GO_Fish master Joined: Jul 2003 Posts: 6,167 Maryland	I'd suspect the fuel pump is getting tired. My 5.2 Dak would start missing, usually when 1/4 tank or less. Eventually started missing so badly under load you could not drive it. No warning lights tripped on the dash. Replaced the fuel pump and the problem was gone. Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: mod381] #811842 09/23/10 09:24 AM 09/23/10 09:24 AM
Joined: May 2007 Posts: 166 Grandville, Michigan D Dustya440 OP member
Dustya440 OP member D Joined: May 2007 Posts: 166 Grandville, Michigan	The cat doesn't rattle at all. All the miles on the truck are highway miles. Is there a way to test for a bad cat? Also, the cap/rotor and wires were replaced less than 1,000 miles ago. It was all done when the head were placed. Thanks for the replys so far!! 1969 Road Runner J Code 1970 Road Runner VOA 1971 Dart Swinger 1971 Cuda Vert 1973 Duster Pro Street 2003 Z06

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: GO_Fish] #811843 09/23/10 09:33 AM 09/23/10 09:33 AM
Joined: May 2007 Posts: 166 Grandville, Michigan D Dustya440 OP member
Dustya440 OP member D Joined: May 2007 Posts: 166 Grandville, Michigan	Go Fish, Did it run good for a long time and then start to miss and sputter and then clear back up for a long time before doing it again? Also, to all the guys suggesting the crank sensor. I tihnk I'll go ahead and change that. If I recall, they are not that expensive. I hate to keep throwing money into it cause I've already spent so much $ on it. It been a great truck up to this point. Thanks again for the suggestions! Mopars coming through again! 1969 Road Runner J Code 1970 Road Runner VOA 1971 Dart Swinger 1971 Cuda Vert 1973 Duster Pro Street 2003 Z06

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: Dustya440] #811844 09/23/10 11:15 AM 09/23/10 11:15 AM
Joined: Jan 2008 Posts: 2,592 None 71rm23 master
71rm23 master Joined: Jan 2008 Posts: 2,592 None	Dustya440- You said the dash lights didn't come on? I have a '99 Ram, 5.9. I was pulling a car, ran fine. Pulled into a rest area. When I took off, all of the sudden it started doing this, same thing. The check engine light came on and stayed on. Got it nursed back home and hooked up a scanner, yup, the crank sensor. Yeah, they are relatively cheap but a PITA to get too. Just wondering if it is the crank sensor, why the light didn't come on

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: 71rm23] #811845 09/23/10 11:35 AM 09/23/10 11:35 AM
Joined: May 2007 Posts: 166 Grandville, Michigan D Dustya440 OP member
Dustya440 OP member D Joined: May 2007 Posts: 166 Grandville, Michigan	That's what I was wondering. Why no lights. Once before the check engine did come on and it was scanned. It showed a bad ox sensor. So it was replaced but the truck still does the same thing only no light now. 1969 Road Runner J Code 1970 Road Runner VOA 1971 Dart Swinger 1971 Cuda Vert 1973 Duster Pro Street 2003 Z06

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: 71rm23] #811846 09/23/10 11:36 AM 09/23/10 11:36 AM
Joined: Feb 2003 Posts: 2,304 WI RestoRick top fuel
RestoRick top fuel Joined: Feb 2003 Posts: 2,304 WI	I just changed the crank position sensor on my '99 Ram 5.2... The hex part of the 2 fastening bolts is 13mm. What will save you aggravation, is knowing that they also have a 1/4" allen socket in the center of the bolt head. Once you break them loose (I used a 1/4" drive rachet), a regular allen wrench gives you a nice clean access to 'em. There's not enough room for the socket to back them out (at least there was stupid tight clearances ). If they're not too tight, you could probably start out with the allen wrench. The bolts & sensor are on the passenger side bellhousing behind the cylinder head by the trans dipstick tube. Rick

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: Dustya440] #811847 09/23/10 11:56 AM 09/23/10 11:56 AM
Joined: Jun 2003 Posts: 21,396 It's a dry heat gtx6970 Too Many Posts
gtx6970 Too Many Posts Joined: Jun 2003 Posts: 21,396 It's a dry heat	Quote: Just wondering if it is the crank sensor, why the light didn't come on The light is just warning device. If the subject sensor / circuit stays within it's designed operating parameters. The light will not come on by design. Crank sensors operate in a .5 to 4.5 volt range . IF it goes above or below this voltage scale it's sets a fault and turns on the mil light. It could still have an issue , just not enough to illuminate the mil light. I personally have never had a crank senser cause a rough idle issue.

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: Dustya440] #811848 09/23/10 12:10 PM 09/23/10 12:10 PM
Joined: Jan 2003 Posts: 1,072 Louisville, KY. S Scottmon super stock
Scottmon super stock S Joined: Jan 2003 Posts: 1,072 Louisville, KY.	Hope you didn't replace the O2 sensor with a Bosch...they don't work well in Mopars. NGK made the factory originals and work much better...http://www.sparkplugs.com/more_info.asp?AAIA=1361955&pid=17785 Quote: That's what I was wondering. Why no lights. Once before the check engine did come on and it was scanned. It showed a bad ox sensor. So it was replaced but the truck still does the same thing only no light now.

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: gtx6970] #811849 09/23/10 12:12 PM 09/23/10 12:12 PM
Joined: Oct 2008 Posts: 116 Midwest M MoparsnMissiles member
MoparsnMissiles member M Joined: Oct 2008 Posts: 116 Midwest	My 2001 Ram (360) just started doing this exact same thing yesterday. Running just fine, then when stopping at intersection, the truck won't idle worth a crap. Then you can't get it to move again because no power, can't get engine speed up, backfiring like timing is off, engine just seems to be choking itself. If I shut it down and restart, it seems to run fine again..... for awhile. Also, no Check Engine lamp (MIL) and no code set on dash display. (Key ON/OFF three times quickly)

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: gtx6970] #811850 09/23/10 12:15 PM 09/23/10 12:15 PM
Joined: Jan 2003 Posts: 1,072 Louisville, KY. S Scottmon super stock
Scottmon super stock S Joined: Jan 2003 Posts: 1,072 Louisville, KY.	Yup, generally when the crank sensor goes the motor just quits running. I've had intermittent starting issues with the "cam" sensor in the dist due to heat soak and age, but no rough running. Quote: Quote: Just wondering if it is the crank sensor, why the light didn't come on I personally have never had a crank senser cause a rough idle issue. Last edited by Scottmon; 09/23/10 12:16 PM.

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: Dustya440] #811851 09/23/10 12:19 PM 09/23/10 12:19 PM
Joined: Jul 2003 Posts: 6,167 Maryland GO_Fish master
GO_Fish master Joined: Jul 2003 Posts: 6,167 Maryland	Quote: Go Fish, Did it run good for a long time and then start to miss and sputter and then clear back up for a long time before doing it again? Yes, the problem was intermittant for many months. It would run normal with a full tank. If the gas went below 1/4 tank, it would start missing. Towards the very end it didn't matter if the tank was full or not, still would idle but bad missing under any load. Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: MoparsnMissiles] #811852 09/23/10 12:24 PM 09/23/10 12:24 PM
Joined: May 2007 Posts: 166 Grandville, Michigan D Dustya440 OP member
Dustya440 OP member D Joined: May 2007 Posts: 166 Grandville, Michigan	In responce to MoparsnMissiles: Sounds just like what my truck does! I just ordered the sensor. Hopefully, this is the problem. Last edited by Dustya440; 09/23/10 12:26 PM. 1969 Road Runner J Code 1970 Road Runner VOA 1971 Dart Swinger 1971 Cuda Vert 1973 Duster Pro Street 2003 Z06

Re: 2000 Dodge Ram 1500 running rough. . . .sometimes. [Re: Scottmon] #811853 09/23/10 12:35 PM 09/23/10 12:35 PM
Joined: Oct 2008 Posts: 116 Midwest M MoparsnMissiles member
MoparsnMissiles member M Joined: Oct 2008 Posts: 116 Midwest	Quote: Yup, generally when the crank sensor goes the motor just quits running. Quote: Yeah, my manual says that if the PCM does not see an output from the crank sensor within 3 seconds of starting the engine, it shuts the fuel system down. So this case would be a completely dead sensor. Doesn't say anything about what happens with intermittent output or low output of the sensor.

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