94gt302e9vert
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- Joined
- Dec 19, 2015
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'94 GT, Manual, Bone Stock, Very Well Maintained.
here is the problem, short but sweet ...
if it is cold outside:
car begins to fire out of intake,
give it gas the backfire moves to exhaust,
barely moves forward while car bucks violently,
stalls,
restart and the same thing for a few more feet then stalls,
next startup the rpms skyrocket and upon dropping it runs as normal.
if I leave the car before 3 starts the cycle of exactly what I described starts over.
if car is in stop and go traffic:
eventually voltage drop (I assume that's a byproduct of loss of vacuum),
car bucks,
backfires out of exhaust and stalls,
restarts hard and with any gas fires out of intake,
runs for about a quarter mile no faster than 15mph then stalls,
restart and backfires out of exhaust then stalls,
upon 3rd start rpms spike then runs fine.
I have ideas such as vacuum leak and timing, but I don't understand how it could follow the exact same behavior every time. Weird.
any ideas??
here is the problem, short but sweet ...
if it is cold outside:
car begins to fire out of intake,
give it gas the backfire moves to exhaust,
barely moves forward while car bucks violently,
stalls,
restart and the same thing for a few more feet then stalls,
next startup the rpms skyrocket and upon dropping it runs as normal.
if I leave the car before 3 starts the cycle of exactly what I described starts over.
if car is in stop and go traffic:
eventually voltage drop (I assume that's a byproduct of loss of vacuum),
car bucks,
backfires out of exhaust and stalls,
restarts hard and with any gas fires out of intake,
runs for about a quarter mile no faster than 15mph then stalls,
restart and backfires out of exhaust then stalls,
upon 3rd start rpms spike then runs fine.
I have ideas such as vacuum leak and timing, but I don't understand how it could follow the exact same behavior every time. Weird.
any ideas??