My 95 Jimmy 4x4 has bad accelaration. Engine idles fine and starts up. Has 181,000 miles on it. Pic of dash gauge, is engine at idle, my check engine light flashes. But when I took it to AutoZone to have it scanned it couldn't read, only said "Error".

When I switch gears I can feel it jump into gear, only when I press the gas it takes awhile to gain speed but still acts as if it has trouble breathing. As I come to a stop applying my foot on the brake, I can hear a whining sound that gets louder the more I press on the brake and quiets down if I come IP off the brake. When I get on the highway I can reach only 55mph before the passenger side bottom of my truck has smoke coming out. I'll take the nearest exit and drive 25-35 and the smoking stops. Recently I looked under the truck after driving on the highway and left the engine running, transmission fluid was leaking from what looked like the lower bellhousing and on the transmission pan. Fluid was dripping on the exhaust pipe and causing smoke...

I've removed the catalytic converter and accelaration is slightly better, meaning before I could've always move and now it moves forward (slowly and picks up) everytime I'm pressing the gas halfway to the floor. Doesn't move in reverse at all.

​​​​​​​So what seems to be my problem? My next move is to replace the spark plugs, then fuel filter, then transmission filter and pan gasket. Any input is appreciated!

 

Check the fuel injectors. In my 95 mine had the same problem, except mine started dying driving down the road. Just check and see if they're going bad. The parts are about $300 and I had the job and parts done for $400.

 

flashing check engine light is usually a cylinder misfire

 

May be in limp mode and starting out in 2nd gear. And driving it with it stuck in 2nd at highway speeds will overheat and fluid will come out the breather. What is the fluid level and condition?

 

and rpm at 55 mph

 

​​​​​​​Ok just stubbled on something else, both sides of the exhaust pipes where they connect to the exhaust manifold. Could this be my lack of power? I'm uploading a video of the dash gauges while I'm driving. Also uploading video of the loose exhaust.

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well it looks like it shifts forward fine. tightening up the exhaust is a good place to start. you really need to do a fuel pressure leakdown test before driving it anymore, your gonna destroy this truck also

 

​​​​​​​Ok so by fuel pressure leakdown test, you mean fuel pressure test or a leakdown test? Went to change fuel filter and found this... It is the line shooting gas into the filter.

 

holy crap, that could be a big problem

 

scrolll down several sections and theres a pic of a fix you can do. They are called comression couplers/fittings