Engine stumble and RPM indication spike
07-21-2012, 01:14 PM
#1
Teching In
Thread Starter
Join Date: Jul 2012
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Engine stumble and RPM indication spike Several days ago my dad was out for a cruise in our '98 Z28 when a couple of odd things happened. While cruising down the highway the RPM gauge spiked a few times and a few minutes later the engine stumbled a bit. It only happened that one time. When it stumbled all the warning lights on the instrument panel briefly came on.I looked over the car and can find nothing obvious. What could cause this? I did recently replace the starter and water pump but everything looks fine in those areas.
07-21-2012, 02:05 PM
#2
Launching!
iTrader: (2)
Join Date: Jun 2011
Location: Poinciana, FL.
Posts: 205
Likes: 0
Received 0 Likes
on
0 Posts
first place i would check is all the grounding straps, make sure they are in tacked and not corroded and also check you connection at the battery both negative and positive
07-23-2012, 12:58 PM
#3
Teching In
Thread Starter
Join Date: Jul 2012
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Checked the battery connections and everything seems OK. What would cause the tach to start wandering on its own? Does that mean the RPM sensor has got issues? I took the car for a ride yesterday and everything seems OK. Anyone ever had this?
