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davestruck
Dodge Dakota
JOIN HERE
2/17/2004
11:33:30
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 Subject: Acceleration Problem
IP: Logged
Message:
I have a severe acceleration problem on a 1992 V-6 3.9L Automatic with 150,000 miles. I can only press the accelerator down about a half an inch. Any more than that the engine cuts out/ will not fire. The engine has plenty of power as I can hold the brake and accelerate to the point of the engine overpowering the brakes, while at a stop.
I replaced the fuel filter. The fuel pump is making a lot of noise. I havn't ruled out fuel rate/pressure problem but I wouldn't think I could power tourque the engine or reach 55 mph, which I can given a few minutes.
I suspect a sensor problem.
How do I pin point the problem?
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TPS
Dodge Dakota
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2/17/2004
11:57:17
|  RE: Acceleration Problem
IP: Logged
Message:
TPS ???
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daffydak
GenIII
2/17/2004
14:49:12
| RE: Acceleration Problem
IP: Logged
Message:
might be the tps (throttle position sensor) are you getting a check engine light? if so it might be the tps. other than that im stumped, guess you should wait to hear from larry on this one
mopar=mopower
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whitedakota2
Dodge Dakota
JOIN HERE
2/17/2004
16:16:34
| RE: Acceleration Problem
IP: Logged
Message:
Did you check for codes?
Take it to a mechanic that has a scanner, watch the O2 to see if the engine is running lean or rich. Also it could be a TPS as suggested above.
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Daves Truck
Dodge Dakota
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2/18/2004
00:51:12
|  RE: Acceleration Problem
IP: Logged
Message:
I tested the voltage on the TPS it increased evenly from .75V to 2.5V.
I replaced the coil thinking it may be a weak spark but that really went against the fact that It had power while brake tourqing.
While test driving I noticed that the engine didn't really cut out all the way, there was some missfiring. I verified that the pulse ring in the distributor wasn't loose. I had super glued it the previous day.
I started to focus on the fuel delivery. I noticed a schrader valve on the fuel rail. I bled out air and it is running much better! I still can't fully accellerate. Air may be leaking into the fuel lines as it is driven. I will focus on the air in the fuel lines for now.
I am unable to get any flashes to reveal codes. I try the on off, 3,4 and 5 times method. I tried clearing it by disconnecting the battery also.
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whitedakota2
Dodge Dakota
JOIN HERE
2/18/2004
11:32:04
| RE: Acceleration Problem
IP: Logged
Message:
Do you have a full tank of fuel?
If not, see if you can get to a station a fill it. Then see how it drives.
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Dianes 88 Dak
GenI
2/18/2004
13:42:46
| RE: Acceleration Problem
IP: Logged
Message:
Have you check cat, could be clogged and bad o2 sensor.
Diane's 88 Dakota [MOPAR RULES...other's... well, you know] http--dodgetrucks.org-cgi-bin-index.pluser=1054&cat=500&thumb=1
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Daves Truck
Dodge Dakota
JOIN HERE
2/18/2004
18:02:35
| RE: Acceleration Problem
IP: Logged
Message:
Diane u need ur cat checked ???? ;-P
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Dianes 88 Dak
GenI
2/18/2004
20:19:34
| RE: Acceleration Problem
IP: Logged
Message:
No, thanks, LOL!
By the way I don't have one anymore.
Good luck with your problem.
Diane's 88 Dakota [MOPAR RULES...other's... well, you know] http--dodgetrucks.org-cgi-bin-index.pluser=1054&cat=500&thumb=1
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