we have a 1995 chevy?
it is a auto it will start and run bairly but as soon as you put it into gear it will die it wont run in gear at all but it will run in park to an extent any one know what could be wrong with it? it has 250xxx miles need to know asap thank you
- Rod KnockerLv 71 decade agoFavorite Answer
Plugged fuel filter
MAP Sensor bad
cracked vacuum lines
O2 sensor bad
Plugged Cat converter
bad plug wires
bad distributor cap/rotorSource(s): 20+ year mechanic
- MikeLv 51 decade ago
I have a 95 Tahoe with 240,000 miles... You just can't kill them...
First thing to do is pull the engine codes. You can do this by blinking them out. Looking at the diagnostics connector and the key in the off position short the A and B leads (top right and the one directly to the left of it)
It will blink a 1..2.....1..2 or 12 three times meaning the system is ready. Then copy down the codes after that. You can google the codes or e-post here for help.
Other things to look at is the small vacuum line that connects to the heater actuator in front of the fire wall, or the other small diameter hoses for that matter. Mine have started to dry rot near the ends.
My guess is going to be the EGR valve... but pull the codes first, it helps a lot.
Good Luck. MikeSource(s): Been There, Done That.
- kevusabornLv 71 decade ago
As always, there are many things that could cause this. With a 1995 I would suspect dried up vacuum
lines which are allowing air to be sucked into the line rather than allow the vaccum to build up. Start
with simple things and work your way up the line if you are attempting to fix this yourself. Let's face it,
a rough running engine isn't going to get better once you get rolling. Visually and manually follow all
of these vacuum lines checking the connections and the entire line ( especially the bottom of the hose ),
for cracks and leaks. Check your air filter for clogging and intake ducts for any nests or creatures that
may have made a home while you weren't driving the vehicle. Listen closely for any hissing sounds
and that could lead you directly to the problem.
It's a place to start. Good Luck to You.
- Ray GLv 51 decade ago
need much more info make model engine size etc.