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stevedak
Dodge Dakota
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7/30/2006
01:17:37
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 Subject: drop in performance
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Message:
ok on the way home from work i usually get on it on a little straight away to see what i can get and i used to get around 85-87 and now i only get around 80 and no codes have been tripped so i was wondering what would be the first thing to check and we replaced the plugs but that didnt help.... oh ya its a 2000 4x4 4.7 quadcab with flowmaster and k&n intake
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Josh
Dodge Dakota
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7/30/2006
11:14:17
| RE: drop in performance
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Message:
Change the oil and try it again.
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MadDSnarE
Dodge Dakota
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7/30/2006
12:56:58
| RE: drop in performance
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Message:
Didn't happen to fill your gas tank before the 80 run did ya? Just a thought...lol.
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stevedak
Dodge Dakota
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7/30/2006
19:48:57
| RE: drop in performance
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Message:
nope ive done it recently with it close to E and still pretty much the same
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.boB
Dodge Dakota
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7/31/2006
19:50:42
| RE: drop in performance
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Message:
Give it a good tune up. Check compression. Wait for the weather to cool off again.
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Um...
Dodge Dakota
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7/31/2006
20:20:04
| RE: drop in performance
IP: Logged
Message:
Maybe there's a loose nut behind the wheel.
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TexasTodd
Dodge Dakota
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8/05/2006
17:44:01
|  RE: drop in performance
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Message:
Wait for a tailwind.
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craig
Dodge Dakota
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8/05/2006
20:29:31
| RE: drop in performance
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Message:
were you hauling something in the bed that day? when i bought my truck i could do 100-105 and now that i took my backseats out and filled up the back with stereo equip. and a toolbox on the back i can only hit 90 if im lucky. if i take it easy through the gears then floor it, 85..if i wind it up through all the gears alittle faster but not much. it doesnt make sense i know but its how it is. damn 3.9s
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stevedak
Dodge Dakota
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8/05/2006
20:39:48
| RE: drop in performance
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Message:
ha im not sure what happened it would do the same all the time and then just one day it decided to slow down and since then it hasnt gotten any faster
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Obio3
Dodge Dakota
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8/05/2006
21:00:24
| RE: drop in performance
IP: Logged
Message:
early signs of cat failure. just a guess
so many problems .... so little time
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craig
Dodge Dakota
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8/06/2006
00:17:53
|  RE: drop in performance
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Message:
only one solution..pull out the 4.7 and put in one of the new 6.1 SRT8 motors
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stevedak
Dodge Dakota
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8/06/2006
01:09:13
| RE: drop in performance
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Message:
haha ya too bad i dont have the money or that would be awesome. i would love to see a dakota with one in it one day.
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clint
Dodge Dakota
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8/06/2006
01:09:39
| RE: drop in performance
IP: Logged
Message:
check your throttle cable. see if it still floors the throttle when the pedal is floored.
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TexasTodd
Dodge Dakota
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8/07/2006
15:55:49
| RE: drop in performance
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Message:
Yea,
YOu might try a new Pussy
Cat.
;-)
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stevedak
Dodge Dakota
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8/07/2006
18:28:21
| RE: drop in performance
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Message:
ya im pretty sure thats what im gonna try i was gonna get the local muffler shop to put one in can they tell before they do it if its bad or not or how does that work? also how much should it cost installed?
thanks
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clint
Dodge Dakota
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8/07/2006
18:32:33
| RE: drop in performance
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Message:
go to ebay!! cats are alot of money!!
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Obio3
Dodge Dakota
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8/08/2006
20:33:57
| RE: drop in performance
IP: Logged
Message:
The only way I know of to check the cat is to disconnect the exhaust infront of cat and do 2 runs. one disconnected and one connected. That should tell you the skinny. Did it that way with mine. Pretty loud lol.
So many problems .... So little time
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GraphiteDak
GenIII
8/08/2006
21:22:13
| RE: drop in performance
IP: Logged
Message:
Muffler shop wont touch it unless it's BAD.
Maybe different gas quality, temperature, humidity.
FAN CLUTCH LOCKED UP with the temperature will do that! And that's a normal thing!
It's takes a lot of HP to turn that fan clutch especially when the RPM's get up there before each shift!
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clint
Dodge Dakota
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8/09/2006
00:29:43
| RE: drop in performance
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Message:
this is true. was the a/c on? was the tailgate up instead of down? were a couple windows open. lets look at the drag on the vehicle. anything different than normal?
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stevedak
Dodge Dakota
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8/09/2006
00:43:11
| RE: drop in performance
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Message:
nope ive done it multiple times with hardly any gas and the first time the tailgate was up and everything so i have no clue i want to try a new cat but in a previous post they stated that they wont put a new one in unless the old one is bad
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.boB
Dodge Dakota
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8/09/2006
16:02:05
| RE: drop in performance
IP: Logged
Message:
>>..that they wont put a new one in unless the old one is bad<<
True. But one of the symptoms of a bad cat is a drop in performance, especially high rpm performance.
Go to an independant shop. They will be happy to do it and still be within the boundries of the law.
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