new here

[8449duke]

new user i have 90 pioneer 2.5 automatic have been reading topics on here for days u guys r great really know your stuff would like basic information on my truck axles trans i put newfuel pump in plugs fuel filter and get the truck past 50 i took the cat off thought it was clogged have heard alot on here any ideas specific to my truck would love some help

[8449duke]

can't get truck over 50 it just starts slowing down

[project88mj]

the reason is you got a 2.5L 4 banger. :rotfl2:

 

jk first off welcome to comancheclub.com

 

my name is Troy but people around here call me zoolander.

 

we could help if you give an detailed explaination about how this "normaly" happens

[8449duke]

if i start it and take off i have power fine until od it seems then i actually staart losing speed its fast until 50 then it just has nothing i should be able to drive at freeway speeds right

[Pete M]

what size tires?

[jimoshel]

Have a '89 2WD, 225K, with 2.5,5sp, 4.11's and 215R75/15.I've had the speedo pegged, that's over 80 on straight level road with no wind. I have no problem coming off the on ramp and merging with freeway traffic.It runs circles around my S10 with 2.8V6. OKOK that's no surprise. Just thot I'd mention it. Just because it's a 4 banger don't sell it short.Jim

[deziped]

Maybe you have a fuel filter starting to plug up. Also check fuel pressure at the port on the fuel rail (Injector feed line). My old 2.5 was worn out and tired, but, it would still do 70 in 4th on flat roads.

[project88mj]

Just because it's a 4 banger don't sell it short.Jim

 

i think i can sell it two pistons shorter than a 4.0 lol

 

all jokin a side the 2.5 had more power than a lot of V6's out there at the time.

[8449duke]

regular 15 inch tires put new exhaust on today flushed coolnt system seems better already going to change all vacumm lines tomorrow which transmission is mine is it a good one

[Pete M]

your trans should be the AW-4 and it is considered a very good trans. :thumbsup: Could you do me a favor and check the gear ratio stamped on the tag on the diff cover on the axle?

[8449duke]

wheres the tag rear axle on differential itself

[8449duke]

its kind of rusted rev b 43225 and part of a number 6 6 9 i think and does it say dana

[Pete M]

hmm. not enough there to tell the gear ratio.

 

the reason I ask is that the 2.5/auto usually came with the rare 4.56 gear ratio. :thumbsup:

[8449duke]

is the 4.56 good and was i looking in the right place the back of housing facing tailgate

[Pete M]

yes, the 4.56 is a good thing. :D

 

if the tag is there, it'll be attached to the cover with one of the cover's bolts.

[8449duke]

it says 4.56 space 9 and then 350 on both sides of the top of it

[8449duke]

it was actually stamped on the differential is that right it had the build date on it 8 29 88