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Why won't my 1991 Isuzu impulse start - Isuzu Cars & Trucks

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Hi would help if you could give a little bit more info please

Posted on Apr 21, 2017


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The injectors on my 1991 Isuzu impulse are not working

Injector get the signal from the ECM computer and it gets the pulse from the crank sensor.

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Search online "serpentine belt" '95 Isuzu 4 cal Impulse.

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Timing marks on 1.6 dual over head cam

the geo storm, 1.6 DOHC
the FSM cover it, so does
hint 2, its an Isuzu engine.
its really (makes information easier to find )
4XE1-UW a DOHC 16-valve engine with 130 hp (97 kW)
he DOHC engine was used in the 1990-1991 Isuzu Impulse XS, in the 1990-1991 Isuzu Stylus XS, in the 1990-1991 Geo Storm GSi, and the M100 Lotus Elan.
all that off the wiki,,
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1st google hit

This engine is interference type
so when timed, with a new belt
roll engine by hand, with spark plugs out.? do pistons hit valves.
yes, stop, the cam is timed wrong.
no, do a compression test on #1, if pass, do all 4. 150psi min.w.o.t.
wide open throttle
a better test, is a leak down test. x4. by hand.
these acts of kindness to the engine, saves most engines.

if the leak down fails, the timing is wrong, or the valves are already
dont use a fleabay china belt, bet a GATES belt. (they last)
setting the tension is very important to a full life .

Jan 30, 2014 | 1990 Geo Storm

1 Answer

Radio cutt off in a isuzu impulse 1990

1) disconnect the fuse of radio , and see how is working.
If you see the motor running hot, the radio is o.k the problem will mechanical trouble. Use the scan and computer Test. Some sensor can be faulty. However you must adjust the timing to the specification manufacturer NOT matter if your is EI.
God bless you.

Sep 18, 2012 | 1991 Isuzu Stylus

1 Answer

1991 Isuzu Rodeo will start initialy fine but if hot it won't restart.

Improve the FixYa experience for everyone by voting.

It sounds as though you may have a faulty fuel pressure regulator. In order to accurately pinpoint the problem, you will have to perform a OBD-I diagnostic scan.

All the best,


Apr 23, 2012 | 1991 Isuzu Rodeo

1 Answer

Install of transfercase on awd models the tansfercase wont fully mount to transmission

check to make sure you have the correct tranfer case,becuase (awd) and (4wd) have different transfer case's.

Apr 05, 2010 | 1991 Isuzu Impulse

1 Answer

I need to replace a clutch on a 1991 isuzu impulse....i need somepicture along with detailed text one else seems to offer any help.

Good luck, this isnt something I would recommend doing for the first time. If you must then purchase a Chiltons/haynes manual and it will normally cover this

Aug 31, 2009 | 1991 Isuzu Impulse

1 Answer

High idle, surge when idling

It's a failed idle air motor, fairly simple , get a new one first and it's just a few bolts and one wire plug, right at or near the throttle body

Good luck, if that doesn't fix it it's the computer

May 31, 2009 | 1991 Isuzu Impulse

1 Answer

1991 impulse xs 4sp auto: oil pressure/losof eng pwr /surge ?

Definitely have a mechanical gauge put on your engine to check real pressure If it's as high as you think it is, you can blow up the oil filter (and loose engine) It may turn out to be a simple item like an oil sending unit. But don't assume anytng 'till its verified!The other item is not as critical as the pressure problem and at this point may or may not be related.

Apr 02, 2009 | 1991 Isuzu Impulse

1 Answer


fuel pump check fuse then relay

Jan 08, 2009 | 1991 Isuzu Impulse

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