The 1991 Isuzu Impulse was offered in the 1.6L naturally aspirate (NA) and 1.6L turbocharged L4. The exhaust gas recirculation (EGR) valve is the same for both engines. The Standard Motor Parts EGR pn# is EGV1119. The OEM Isuzu part numbers# include 8943842120, 8970243880, 8970243890, 94384212 and 97024388.
As with all inline four cylinders, The firing order is 1342.
5W-30 Motor oil i believe.
this is a non interference engine - lucky...
The engine is a 4zd1, 2.3L, 5 speed, rwd, 8 valve.
Possibly a defective high beam switch, or associated relay.
Isuzu Panther was created in 1991.
Geo Storm was manufactured from 1990-1993. Two engines were available the 1600cc SOHC and the 1600cc DOHC while it is possible to switch between one style engine for the other it is rather involved. Other sources for these engines are the Isuzu Stylus for the SOHC or the DOHC or the Isuzu Impulse XS for the DOHC. The Isuzu Impulse RS was a DOHC Turbo which requires considerable modification to install.
According to the wiring diagram, there is no inertia switch. There is only a relay switch in a 1991 Isuzu Trooper.
autozone.com http://www.autozone.com/az/cds/en_us/0900823d/80/18/3a/b2/0900823d80183ab2/repairInfoPages.htm
you have to drop the fuel tank, remove the hoses after it is lowered a bit. once completely removed open up the sending unit and pull out the fuel pump , replace and re-assemble
4 quarts
The 1991 Geo Metro EGR valve can be located on the air cleaner housing. The valve will be on the back of the housing.