engine or tranny prob?
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Joined: Jan 2005
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engine or tranny prob?
Alright, i bought this 87 B2 about 4 months ago and its been running rough since then. Now im fed up and am going to get it running the way a true B2 should.
The problem is: when accelerating it doesnt shift until very high rpm's (sometimes i wonder if it will at all), and once i get up to speed (around 40) and give it a little more gas to pass another car or get those pesky tailgaters off my back it down-shifts and doesnt accelerate at all (the rpm's stay at about 2300-3000). Another thing is once i get to about 50-55 if i give it even a little more gas it down-shifts and practically slows down. Is this because thats all the little 2.9 has got, or does it have something to do with the tranny?
Lemme know>
87b2guy
The problem is: when accelerating it doesnt shift until very high rpm's (sometimes i wonder if it will at all), and once i get up to speed (around 40) and give it a little more gas to pass another car or get those pesky tailgaters off my back it down-shifts and doesnt accelerate at all (the rpm's stay at about 2300-3000). Another thing is once i get to about 50-55 if i give it even a little more gas it down-shifts and practically slows down. Is this because thats all the little 2.9 has got, or does it have something to do with the tranny?
Lemme know>
87b2guy
Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
Like Ken sez, it could be a modulator problem, but could also be a vacuum problem.
If this was mine, i'd hookup my vacuum gauge & see what vacuum looks like at idle & more importantly the vac gauge will tell you if you have a clogged cat.
For less than a dealer would charge to fix this you can buy a vac gauge/code scanner/fuel pressure gauge.
Just follow the directions that come with these-& in your Haynes manual- to do some simple testing & let us know what you come up with.
If this was mine, i'd hookup my vacuum gauge & see what vacuum looks like at idle & more importantly the vac gauge will tell you if you have a clogged cat.
For less than a dealer would charge to fix this you can buy a vac gauge/code scanner/fuel pressure gauge.
Just follow the directions that come with these-& in your Haynes manual- to do some simple testing & let us know what you come up with.
Last edited by 87 XLT; Jan 2, 2005 at 02:26 PM.
