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Isuzu Trooper Electrical Problems
supertrooper20
Member Posts: 2
in Isuzu
I have a 91 Isuzu Trooper (auto) my injectors on my carb wont spray because there is no power going to them. I have made sure they work by connecting them to the battery but there is no power getting to the injectors. It sounds like a fuse problem but iv checked all the fuses on the main panel under the hood. Is there another panel that im not finding? Any suggestions?
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rustycaman@yahoo.com
I need to replace the electrical connectors to the coil and am having some dificulty in finding a reasonable replacement.
Does anyone have a good source for automotivr electrical connectors, etc.? Thanks.
Thanks for any help....
Thank you
I have a 93 automatic SOHC Trooper with cruise (relevant in a minute) and my problem is with the turn signal light switch. I had an issue with the relay at first where it was constantly buzzing when I tried to signal. I eventually replaced the relay but now, perhaps because of my needing to repeatedly apply it to get it to work during the relay’s failures, the left signal no longer blinks. The bulbs have been checked and are OK. The yellow turn signal bulbs work for right turns and four-way flasher, but when left is applied, the relay does its usual clicking, but there is no light except the left-front white bulb which comes on for signaling too but does not blink.
My mechanic had a look at it when I brought the car in for another issue and said that they traced the issue back to the switch itself, that probably the contacts inside the switch assembly have popped loose. The only fix he could recommend it to replace the entire switch assembly which entails disassembling the steering wheel and column to perform. Further, the switch assembly contains all the blinker, light hi/lo, and cruise controls and as such is a $270 dealer only part plus another 200-300 in labor, taxes, etc.
This is a massively expensive fix. I have an alternate idea. My understanding of the switch is that there are two single-pole switches that close when the left signal engages, one that triggers the relay to blink power, and one that closes the left bulb circuit. A similar situation occurs with two other switches for right turns.
If I knew which sets of wires on the harness closed the left bulb circuit and the right bulb circuit (as it occasionally fails as described above) I could attach a “suitcase” type wire tap to each of these two wires sets and close the circuit with an external switch, perhaps a momentary leaf switch mounted to the turn signal switch shaft. I know that the contacts that close the flasher relay must still work because it still clicks.
If this is able to be done, I would need a wire color diagram of the switch harness to know what wires to tap and bypass. Can anyone help?
Thanks
If you are able to find this data, it would be very helpful.
On a side note, to make matters worse, a few days ago my speedometer/odometer decided it did not want to work anymore. I have no idea what to do there. It had stopped working several times in the past for an hour or two then revived, but now it shows no sign of life. Is this a common problem in this model? I have 143K on her.
Thanks
93 Trooper wiring 1
93 Trooper wiring 2
You may be able to click on the download link there and save them locally and maybe blow them up a bit. The resolution may be too fuzzy though.
I'm afraid there is an interconnection problem. switching on my lights, also the cabin lights switch on/ are powered.
So the outer lights/ standlights can be fused by their own fuse either or by the cabin lights fuse
Other problem: starting the motor switches the stabndlights on and powers cabin light of course.
Someone having any idea?
Regards,
Matthijs Borst
Thx
So put in new battery , checked terminals look good,,, NOTHING no power to anything ?? Is it possible he could have fried the electrical system tryin to jump it? what could it be? HELP confused
I have a 1999 Trooper where the door jamb light switches in all four doors are either broken completely or corroded and only working intermittently. To confirm, these are the switches that should turn on the interior lights upon opening a door.
Other than heading for the salvage yard to replace like for like with what seems to be a poor quality design, has anyone determined a good replacement?
Thanks Much
Thanks,
Gorgora
Any ideas what the problem could be?
Please help,
Thanks, :sick:
Sometimes when it shuts off at a stop sign, it will start however, I have a Check Engine light and a Reduced Power light. When I get it back home and try starting it the next day, it starts without any issues and none of the warning lights are visible????
i used to have and issue with my vehicle check engine light coming on and the vehicle going into "limp mode" or reduced power light.. i had my first mechanic check the engine codes and they all came back to the throttle body..i had the throttle body replaced,egr,and had bg products blown through the intake system..got the truck back and a week later the same issue appeared after costing me about $1200 parts and labor..after taking my vehicle back to the same mech. 3 times i had a backyard mech. look at my vehicle and he stated that there are two wires in the harness connected to the throttle body,coming from the ecu that short out and
he repinned the connecter at the throttle body because the connectors inside the harness were moving around inside the connector loosing connectivity also..the mech reran two wires from the harness outside the
harness bundle straight to the connection at the ecu and i have not had that issue since...in my opinion i would check this first before spending time and money chasing your tail...
I have the answer to your problem. I have a 98 trooper I bought new. I am an aircraft mechanic and I had the same problem you have now. Many other trooper drivers will experience this problem too. Your answer is to take the allen head screws from the sensor which goes into the air intake of your engine. When you open your hood follow your air filter inlet from the air cleaner box to where the intake goes into the engine. Right there you will see a sensor with a plug on it. It has two allen head screws. remove that sensor and spray it off with electrical cleaner. You will find it has a bunch of black soot on it. If you spray it off with cleaner, dry it and reinstall it you will have your trooper back in good shape I promise....Kevin
After 3-4 incidents, I assumed the cold weather killed the older, presumably weak battery so I replaced it with a new heavy-duty one. Everything was fine for about two weeks, then after 2-3 days without driving the car, the same problem dead battery; obviously a short was draining it.
I checked all the obvious possibilities i.e. dome light/head light left on sunshade vanity mirror left open etc. all to no avail.
Then the strange part: after jumping it and letting it charge for a while, I shut the car off, shut the headlights ( it was dark), locked the car and as I left the car, I noticed that the headlights were still on(?) Thinking that I either forgot to turn them off or that they were on a time delay, I re-entered the car and rechecked that the headlight switch was in the ‘off’ position. Turning it on and off several times would not turn off the lights UNTIL .I put the turn signal in the ‘down’ (left turn) position! ODD???
The next day the new battery was drained/dead bad wiring in the steering column? Bad turn signal?
Any clues?...Answers? Similar situation and a fix?