| From | Message |
notascrename
Dodge Dakota
JOIN HERE
8/12/2010
19:40:39
|
 Subject: no power
IP: Logged
Message:
Ok, My son complained that his 97 dakota was having trouble pulling a small trailer. (2.5L 4 cyl engine so I knew it would'nt have much power.) I let him drive my truck (97 gm 5.7 3/4 ton. ( told him not to forget that he had a trailer back there) drove his truck. barely pulled itself around so I changed cap and rotor,wires and plugs and air cleaner. minor change. Catalytic convertor? What kind of pressure readings before and after cat should I see if good? bad? thanks
|
pssssst
Dodge Dakota
JOIN HERE
8/12/2010
21:09:03
|  RE: no power
IP: Logged
Message:
How many miles?
Did you check to see if there is any stored codes?
|
notascrename
Dodge Dakota
JOIN HERE
8/13/2010
06:04:10
| RE: no power
IP: Logged
Message:
Sorry, 165K miles. haven't checked codes yet but no service light.
|
Bob Lincoln
Dodge Dakota
JOIN HERE
8/13/2010
08:07:16
| RE: no power
IP: Logged
Message:
Many stored codes will not give a Check Engine light.
http://www.allpar.com/fix/codes/index.html
|
notascrename
Dodge Dakota
JOIN HERE
8/13/2010
18:59:35
| RE: no power
IP: Logged
Message:
Had the codes checked, none set. Still think it's the cat. I can check the pressure across the cat. thanks, Jim
|
yea
Dodge Dakota
JOIN HERE
8/13/2010
22:34:06
| RE: no power
IP: Logged
Message:
The O2 could be getting lazy.
|
super bee
GenI
8/15/2010
11:47:23
| RE: no power
IP: Logged
Message:
it could be missing 4 cylinders too
1990 sport RC SB, 1995 318drivetrain, 3.92 gears (came with truck) Powertrax "traction system", 95 dash/steering wheel, hearthrob exhaust, headers, cutout after y-pipe, necessary electric fan add-a-leafs, 30x9.5 mud tires, cranked T-bars, AR 39 15x8 rims, grill guard, roll bars
|
yea
Dodge Dakota
JOIN HERE
8/15/2010
18:55:20
| RE: no power
IP: Logged
Message:
Funny but good point super bee.
|
notascrename
Dodge Dakota
JOIN HERE
8/15/2010
19:10:19
| RE: no power
IP: Logged
Message:
I agree with the four cylinder thing there but this thing should at least be able to handle it in fifth gear on level road. Spark plugs were badly worn but light tan,Pops once in a while at shift and is really touchy taking off. have to keep the RPMs up.
|
super bee
GenI
8/16/2010
00:13:23
| RE: no power
IP: Logged
Message:
handle towing the boat in 5th gear, or unloaded in fifth gear?
1990 sport RC SB, 1995 318drivetrain, 3.92 gears (came with truck) Powertrax "traction system", 95 dash/steering wheel, hearthrob exhaust, headers, cutout after y-pipe, necessary electric fan add-a-leafs, 30x9.5 mud tires, cranked T-bars, AR 39 15x8 rims, grill guard, roll bars
|
notascrename
Dodge Dakota
JOIN HERE
8/16/2010
18:21:47
| RE: no power
IP: Logged
Message:
My boat weighs 7240 lbs. what he towed was a small equiptment trailer. I'll test the exhaust pressure around the cat tomorrow and let you know the results. This thing won't overcome wind resistance in 5th no trailer, empty bed.
|
super bee
GenI
8/16/2010
20:04:00
| RE: no power
IP: Logged
Message:
a 1990 stock v6 is the same way
wind or slight inlcine and it jsut plain sucks and would be out of OD and into 3rd
manual was into 4th just to maintain speed
and that v was rated about the same as the 4cyl you have
it is just plain not enough power for the truck
1990 sport RC SB, 1995 318drivetrain, 3.92 gears (came with truck) Powertrax "traction system", 95 dash/steering wheel, hearthrob exhaust, headers, cutout after y-pipe, necessary electric fan add-a-leafs, 30x9.5 mud tires, cranked T-bars, AR 39 15x8 rims, grill guard, roll bars
|
notascrename
Dodge Dakota
JOIN HERE
8/16/2010
22:41:07
| RE: no power
IP: Logged
Message:
Doesn't matter what a 1990 6cyl might be like.They don't sound plugged up and pop when you shift. Had a 2.5 liter in an S-10 and it would run circles around this thing. This thing rates at 120 hp. should overcome wind resistance in 5th. Darned thing is almost dangeous to drive. tests tomorrow should shed more light.
|
super bee
GenI
8/16/2010
23:01:42
| RE: no power
IP: Logged
Message:
1990 v6 was rated at 125 hp
it couldnt get out of its own way
just sayin with similar weight and similar power similar performance should be expected
1990 sport RC SB, 1995 318drivetrain, 3.92 gears (came with truck) Powertrax "traction system", 95 dash/steering wheel, hearthrob exhaust, headers, cutout after y-pipe, necessary electric fan add-a-leafs, 30x9.5 mud tires, cranked T-bars, AR 39 15x8 rims, grill guard, roll bars
|
yea
Dodge Dakota
JOIN HERE
8/17/2010
02:13:24
| RE: no power
IP: Logged
Message:
Hey humor me for a minute, Take the cap off and try
moving the rotor back and forth.
(and yes I am serious)
Truck/Engine seem weaker untill it fully warms up?
|
notascrename
Dodge Dakota
JOIN HERE
8/21/2010
14:59:50
| RE: no power
IP: Logged
Message:
Ok, pressure test in front of cat was 0 psi (15 pound gauge. Distributor bushings were tight- no slack. I hate to throw parts at this thing till it's good. Fuel system next?
|
yea
Dodge Dakota
JOIN HERE
8/22/2010
10:16:10
| RE: no power
IP: Logged
Message:
Put a gauge on it right at the schrader valve.
Another thing you can check if it's got a regular
muffler. Get under and bang on it with the side of a
fist. could be rotted inside and starting to
collapse. Keep in mind as someone told you above,
These motors were very weak for these trucks to
begin with so you could be chasing a gremlin.
|
notascrename
Dodge Dakota
JOIN HERE
8/22/2010
14:11:49
|  RE: no power
IP: Logged
Message:
Well I think I might have found the gremlin. some idiot put 17" dodge rims on and this idiot didn't realise they weren't stock rims. high profile tires to boot. We use tire diameter to tune shift points and bias the rear axle to wanna turn left at the race track. tire circumference varies quite a bit between any 4 "identical" tires.
|
| | P 1 |
|
Post a reply to this message:
Username Registration: Optional
All visitors are allowed to post messages
|
