89 Ram has no acceleration!
#1415897
04/07/13 11:53 AM
04/07/13 11:53 AM
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Joined: Oct 2004
Posts: 1,288 P.E.I. eastern Canada
newportrider
OP
pro stock
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OP
pro stock
Joined: Oct 2004
Posts: 1,288
P.E.I. eastern Canada
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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?
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Re: 89 Ram has no acceleration!
[Re: newportrider]
#1415898
04/07/13 01:00 PM
04/07/13 01:00 PM
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Joined: Oct 2005
Posts: 1,305 Lakewood, Colorado
herkamer
pro stock
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pro stock
Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
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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
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Re: 89 Ram has no acceleration!
[Re: newportrider]
#1415900
04/07/13 03:38 PM
04/07/13 03:38 PM
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Joined: Aug 2003
Posts: 12,291 Kent, Wa
340SHORTY
Truck Nut
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Truck Nut
Joined: Aug 2003
Posts: 12,291
Kent, Wa
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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..
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Re: 89 Ram has no acceleration!
[Re: 440newport]
#1415903
04/07/13 05:24 PM
04/07/13 05:24 PM
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Joined: Aug 2003
Posts: 12,291 Kent, Wa
340SHORTY
Truck Nut
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Truck Nut
Joined: Aug 2003
Posts: 12,291
Kent, Wa
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just resetting the codes isnt going to fix the troubles.
I am truckless..
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Re: 89 Ram has no acceleration!
[Re: newportrider]
#1415908
04/07/13 11:48 PM
04/07/13 11:48 PM
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Joined: Oct 2005
Posts: 1,305 Lakewood, Colorado
herkamer
pro stock
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pro stock
Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
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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
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Re: 89 Ram has no acceleration!
[Re: scratchnfotraction]
#1415911
04/08/13 02:55 PM
04/08/13 02:55 PM
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Joined: Jul 2003
Posts: 6,167 Maryland
GO_Fish
master
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master
Joined: Jul 2003
Posts: 6,167
Maryland
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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
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Re: 89 Ram has no acceleration!
[Re: scratchnfotraction]
#1415914
04/08/13 08:09 PM
04/08/13 08:09 PM
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Joined: Oct 2003
Posts: 3,688 Alexandria,La.
BigTerry
master
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master
Joined: Oct 2003
Posts: 3,688
Alexandria,La.
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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!!
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Re: 89 Ram has no acceleration!
[Re: newportrider]
#1415915
04/08/13 08:11 PM
04/08/13 08:11 PM
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Joined: Oct 2005
Posts: 1,305 Lakewood, Colorado
herkamer
pro stock
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pro stock
Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
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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
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Re: 89 Ram has no acceleration!
[Re: jerseybud]
#1415916
04/08/13 08:20 PM
04/08/13 08:20 PM
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Joined: Jul 2006
Posts: 9,366 Lehigh Acres, Florida
rickstershemi
master
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master
Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
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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
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