Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
89 Ram has no acceleration! #1415897
04/07/13 11:53 AM
04/07/13 11:53 AM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
My 89 Ram 318 fuelie auto, acted up around Christmas, where it will not accelerate. It starts and idles fine, but if you try to rev it up will not accept throttle, bogs, sometimes back fires. I replaced the fuel filter, and it has half tank of fuel. I started it this morn after sitting since New Years and it started with out a hitch, but will not rev up. Is it a throttle body/electical or what. Spring is here and I need a truck, any Ideas?

Re: 89 Ram has no acceleration! [Re: newportrider] #1415898
04/07/13 01:00 PM
04/07/13 01:00 PM
Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
herkamer Offline
pro stock
herkamer  Offline
pro stock

Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
First, start by checking for stored codes. Key on-off-on-off-on within 10 seconds. See if anything comes up. Next would be to reset any soft codes that are not stored by disconnecting the battery for 30 minutes. Next I would check to see if the injectors have a good spray pattern with a timing light. Start there and see what you can come up with. Despite everyone saying to go to a carb, I've found these aren't that hard to work on.


Matt
69 Dart Swinger 340
83 W350, Megasquirted with 46RH
Old news: 72 Demon street/race mobile
Latest: 70 Duster backhalf car
and even more
Re: 89 Ram has no acceleration! [Re: herkamer] #1415899
04/07/13 02:31 PM
04/07/13 02:31 PM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
I know little to nothing about fuel injection. How would you reset codes?

Re: 89 Ram has no acceleration! [Re: newportrider] #1415900
04/07/13 03:38 PM
04/07/13 03:38 PM
Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY Offline
Truck Nut
340SHORTY  Offline
Truck Nut

Joined: Aug 2003
Posts: 12,291
Kent, Wa
proper sequence for checking codes is on off on off on off on without cranking starting, watch for the blinking series. To reset you simply dissconect the battery for about 30 seconds. A FSM is invaluable in this case..


I am truckless..
Re: 89 Ram has no acceleration! [Re: 340SHORTY] #1415901
04/07/13 03:56 PM
04/07/13 03:56 PM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
I had the battery out last night to move another old truck of mine,86 carbed, put it back in 2hrs ago no change still acting the same.

Re: 89 Ram has no acceleration! [Re: newportrider] #1415902
04/07/13 04:48 PM
04/07/13 04:48 PM
Joined: Jan 2003
Posts: 4,587
St. John's Newfoundland
440newport Offline
master
440newport  Offline
master

Joined: Jan 2003
Posts: 4,587
St. John's Newfoundland
Mine acted the same way before and it turned out to be a corroded cap and rotor, so check those first. Also sounds like it could be the map sensor. Turn the key on-off-on-off-on and watch the check engine light for the codes if there are any.

Re: 89 Ram has no acceleration! [Re: 440newport] #1415903
04/07/13 05:24 PM
04/07/13 05:24 PM
Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY Offline
Truck Nut
340SHORTY  Offline
Truck Nut

Joined: Aug 2003
Posts: 12,291
Kent, Wa
just resetting the codes isnt going to fix the troubles.


I am truckless..
Re: 89 Ram has no acceleration! [Re: 340SHORTY] #1415904
04/07/13 05:38 PM
04/07/13 05:38 PM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
Message center is flashing 5 times. I can't tell if there is long or short flashes all look the same to me!

Re: 89 Ram has no acceleration! [Re: newportrider] #1415905
04/07/13 07:36 PM
04/07/13 07:36 PM
Joined: Apr 2004
Posts: 684
Maine
J
jerseybud Offline
mopar
jerseybud  Offline
mopar
J

Joined: Apr 2004
Posts: 684
Maine
Be sure the fuel pressure is around 14.5. If its 8 or 10 or similar, that's your problem. very common.

Re: 89 Ram has no acceleration! [Re: jerseybud] #1415906
04/07/13 09:37 PM
04/07/13 09:37 PM
Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY Offline
Truck Nut
340SHORTY  Offline
Truck Nut

Joined: Aug 2003
Posts: 12,291
Kent, Wa
You need to learn how to read the flashes..


I am truckless..
Re: 89 Ram has no acceleration! [Re: 340SHORTY] #1415907
04/07/13 10:29 PM
04/07/13 10:29 PM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
Yeeah

Re: 89 Ram has no acceleration! [Re: newportrider] #1415908
04/07/13 11:48 PM
04/07/13 11:48 PM
Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
herkamer Offline
pro stock
herkamer  Offline
pro stock

Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
Flashes are read as a blink of the check engine light in the message center, and always 2 numbers. No zero and none start higher than 6. It will have a short pause between blinks, then long pause between digits and codes. Long and short is relative, maybe 1/2 sec difference. You should have a code 12 since the battery has been out within the 50 last key ons, and it always ends with 55. Mine always has 37 which is not a big deal, has to do with the A/T.

I also had a wasted cap and rotor when I first bought it and it would barely run. Good place to start looking.


Matt
69 Dart Swinger 340
83 W350, Megasquirted with 46RH
Old news: 72 Demon street/race mobile
Latest: 70 Duster backhalf car
and even more
Re: 89 Ram has no acceleration! [Re: herkamer] #1415909
04/08/13 07:16 AM
04/08/13 07:16 AM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
Thanks for the info. I'll recheck the codes this evening after work. The cap button and wires were replaced in October, but it could be bad. The out door garage work doesn't appeal to me this time of year.

Re: 89 Ram has no acceleration! [Re: newportrider] #1415910
04/08/13 09:23 AM
04/08/13 09:23 AM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
make sure you did not cross 3-5 plug wires

it will run but not run very well.

Re: 89 Ram has no acceleration! [Re: scratchnfotraction] #1415911
04/08/13 02:55 PM
04/08/13 02:55 PM
Joined: Jul 2003
Posts: 6,167
Maryland
GO_Fish Offline
master
GO_Fish  Offline
master

Joined: Jul 2003
Posts: 6,167
Maryland
Are you hearing any hissing from the exhaust when the engine is running? On my '90 Dakota, the catalytic converter "brick" inside the case cracked, and pieces went down inside the muffler and plugged the muffler. Does the converter or muffler rattle when you bang on it with a rubber mallet? I had very weak power until I mashed the throttle one day out of frustration, and BANG, blew a hole in the side of the muffler... then the power came back.


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: 89 Ram has no acceleration! [Re: GO_Fish] #1415912
04/08/13 04:27 PM
04/08/13 04:27 PM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
Exhaust is clear, new muffler installed last Oct and converter gutted by previous owner. going out to see if I can interpet the code flashes.

Re: 89 Ram has no acceleration! [Re: newportrider] #1415913
04/08/13 06:20 PM
04/08/13 06:20 PM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
Well I tried reading the codes. First set 3 flashes: 12 or 21 ? second set: four flashes: 13 or 22 or 31? followed by two sets of 5. Sorry but I couldn't tell short from long flashes but I did notice the pause between codes. Took me 6 tries!LOL TIA

Re: 89 Ram has no acceleration! [Re: scratchnfotraction] #1415914
04/08/13 08:09 PM
04/08/13 08:09 PM
Joined: Oct 2003
Posts: 3,688
Alexandria,La.
B
BigTerry Offline
master
BigTerry  Offline
master
B

Joined: Oct 2003
Posts: 3,688
Alexandria,La.
Quote:

make sure you did not cross 3-5 plug wires

it will run but not run very well.


especially if all your problem started after the replacing the wires!!

Re: 89 Ram has no acceleration! [Re: newportrider] #1415915
04/08/13 08:11 PM
04/08/13 08:11 PM
Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
herkamer Offline
pro stock
herkamer  Offline
pro stock

Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
There are no long or short flashes, just long or short pauses.

12 - PCM Power loss within 50 last key ons. To be expected since the battery has been out

13 - MAP sensor problem - Controls most fueling, that would certainly be something to look at

22 - Coolant temp too high or low

31 - Problem with canister purge solenoid circuit

Based on your description I get 34
34 - Open/short in speed control vacuum or vent solenoid circuits

55 - End of codes

Almost everyone in the world has a cell phone with video camera. Maybe take a video?


Matt
69 Dart Swinger 340
83 W350, Megasquirted with 46RH
Old news: 72 Demon street/race mobile
Latest: 70 Duster backhalf car
and even more
Re: 89 Ram has no acceleration! [Re: jerseybud] #1415916
04/08/13 08:20 PM
04/08/13 08:20 PM
Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
rickstershemi Offline
master
rickstershemi  Offline
master

Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
Quote:

Be sure the fuel pressure is around 14.5. If its 8 or 10 or similar, that's your problem. very common.




^^^^THIS.....have you replaced the fuel filter...?????

Rickster

Re: 89 Ram has no acceleration! [Re: rickstershemi] #1415917
04/08/13 09:09 PM
04/08/13 09:09 PM
Joined: Sep 2003
Posts: 7,828
east side of Ohio
basketcase Offline
master
basketcase  Offline
master

Joined: Sep 2003
Posts: 7,828
east side of Ohio
or no holes in fuel line.


Dave


1981 Dodge D150 360 auto
Re: 89 Ram has no acceleration! [Re: herkamer] #1415918
04/08/13 10:18 PM
04/08/13 10:18 PM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
Quote:

There are no long or short flashes, just long or short pauses.

12 - PCM Power loss within 50 last key ons. To be expected since the battery has been out

13 - MAP sensor problem - Controls most fueling, that would certainly be something to look at

22 - Coolant temp too high or low

31 - Problem with canister purge solenoid circuit

Based on your description I get 34
34 - Open/short in speed control vacuum or vent solenoid circuits

55 - End of codes

Almost everyone in the world has a cell phone with video camera. Maybe take a video?




I will wager the MAP sensor is bad.

this tells the PCM how much air is moving thru throttle body by reading "manifold absolute pressure" IIRC. or mass air flow?

crappy stock electronic junk, strip it for a carb and points dist and never fool with it again.

Re: 89 Ram has no acceleration! [Re: scratchnfotraction] #1415919
04/08/13 10:33 PM
04/08/13 10:33 PM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
Ok I'll try a map sensor and see what happens. The cap and wires were replaced long before this problem started and fuel filter and gas lines rubber and steel were replaced. One of the gas tank straps broke in Oct so I gave the old girl an overhaul while it was in a buddies garage before winter set in. When it first acted up at Christmas I blamed water in gas, changed fuel filter again, put deicer in and topped up with premium fuel, nothing helped, then winter set in and truck sat. Now spring is here and I can get a chance to work on it.

Re: 89 Ram has no acceleration! [Re: newportrider] #1415920
04/09/13 07:09 PM
04/09/13 07:09 PM
Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
herkamer Offline
pro stock
herkamer  Offline
pro stock

Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
I would check for rotted hoses and vacuum leaks before dumping money into a MAP. There is a maze of spaghetti under the hood and it all is to be related to each other. Make sure your EGR valve is clean and free moving. Any one stupid little thing can throw off fueling. Easy way to tell is disconnect and plug the vacuum to the MAP and see if it still runs the same. Also spray carb or brake cleaner on the hoses and fittings for a leak test. Idle will go up if it sucks any of the cleaner in. I've found throwing parts at a problem without correct diagnosis is throwing good money away.


Matt
69 Dart Swinger 340
83 W350, Megasquirted with 46RH
Old news: 72 Demon street/race mobile
Latest: 70 Duster backhalf car
and even more
Re: 89 Ram has no acceleration! [Re: herkamer] #1415921
04/09/13 08:42 PM
04/09/13 08:42 PM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
Thanks, I won't be doing anything till the weekend again. I'm going to "borrow' a map sensor and try before I buy!

Re: 89 Ram has no acceleration! [Re: newportrider] #1415922
04/09/13 10:07 PM
04/09/13 10:07 PM
Joined: Sep 2003
Posts: 7,828
east side of Ohio
basketcase Offline
master
basketcase  Offline
master

Joined: Sep 2003
Posts: 7,828
east side of Ohio
and check the wires going into the map. we had a Dynasty that was coming up bad map, changed it, stil had the problem. found out one of the wires going into the plug was bad, and when the engine rocked it was sending out a false code.


Dave


1981 Dodge D150 360 auto
Re: 89 Ram has no acceleration! [Re: basketcase] #1415923
04/10/13 10:19 AM
04/10/13 10:19 AM
Joined: Jan 2006
Posts: 452
Coeur d Alene, Idaho
J
jimbob101 Offline
mopar
jimbob101  Offline
mopar
J

Joined: Jan 2006
Posts: 452
Coeur d Alene, Idaho
I also had a 89 Ram with the same problem, run and idle fine but no power or acceleration. Before you start throwing parts at it, did you check your FUEL PRESSURE? You can tee in right before it goes into the throttle body in the back. Run a gauge up to your windshield and take it for a drive.

Mine ended up beinga plugged fuel pickup sock and/or weak electric fuel pump, I replaced both. I had 14-15psi fuel pressure but once accelerator was depressed while driving it would drop to 4psi less. If pressure tested bad, you can just get the electric pump for ~100$ w/o getting the whole stinking sending unit which is above $200 plus.

I bet it could be that..

-J

Re: 89 Ram has no acceleration! [Re: jimbob101] #1415924
04/10/13 11:32 PM
04/10/13 11:32 PM
Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
N
newportrider Offline OP
pro stock
newportrider  Offline OP
pro stock
N

Joined: Oct 2004
Posts: 1,287
P.E.I. eastern Canada
If the weather is good on the weekend I will be trying fuel pressure, and a map sensor fuel lines are pretty much new from tank to throttle body.

Re: 89 Ram has no acceleration! [Re: scratchnfotraction] #1415925
04/11/13 05:57 PM
04/11/13 05:57 PM
Joined: Jan 2003
Posts: 5,283
Land 'O Lakes
RoadRunnerLuva Offline
master
RoadRunnerLuva  Offline
master

Joined: Jan 2003
Posts: 5,283
Land 'O Lakes
Quote:

Quote:

crappy stock electronic junk, strip it for a carb and points dist and never fool with it again.




with this...I bought an '89 318 TBI Dodge Ram 1500 4X4 brand new...damn thing couldn't get out of it's own way if it wanted to. I was so disgusted with it at the time, I sold it just a few month's later for what I had into it...and bought a '79 360 Dodge 1500 club cab with a CARBURATOR...always ran great!!


Plymouth Makes It!
Re: 89 Ram has no acceleration! [Re: RoadRunnerLuva] #1415926
04/12/13 12:39 AM
04/12/13 12:39 AM
Joined: Apr 2007
Posts: 905
SD
Z
zrxkawboy Offline
super stock
zrxkawboy  Offline
super stock
Z

Joined: Apr 2007
Posts: 905
SD
Several possibilities...good suggestions here, but don't shotgun it! Diagnose it! Start by testing fuel pressure.


It's Swifty! Swifty, you toad sucker!
Re: 89 Ram has no acceleration! [Re: zrxkawboy] #1415927
04/12/13 03:30 AM
04/12/13 03:30 AM
Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY Offline
Truck Nut
340SHORTY  Offline
Truck Nut

Joined: Aug 2003
Posts: 12,291
Kent, Wa


I am truckless..
Page 1 of 2 1 2






Powered by UBB.threads™ PHP Forum Software 7.7.1