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Ask Amedee Your Own Question
Amedee, Former ASE Master Tech
Category: Car
Satisfied Customers: 24129
Experience:  ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector
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1999 Isuzu Trooper: with 180,000, it just died

Customer Question

I have a 1999 Isuzu Trooper with 180,000 miles. It has always ran like a clock. Then last week, while driving in town, it just died - like I turned the key off. No noises, nothing out of ordinary. Starter and all lights and dash lights working, but won't fire at all. Tried starter fluid, not even a hiccup! After cranking a few minutes could smell raw gas at tail pipe
Submitted: 5 years ago.
Category: Car
Expert:  Amedee replied 5 years ago.
Hello and Welcome to Just Answer!

We will have to pinpoint what the engine is missing.





All three of these are tested when the engine is being cranked over. There are two way of checking for fuel. Fuel pressure and fuel trigger. Both are very important and must be present for the car to start. Fuel pressure is self explanatory. You just hook up the gage and see what the reading is. Fuel trigger is check with a noid light. The injector gets unplugged and the noid light gets plugged in to the injector clip. With the engine cranking over, this light must blink. This is the signal to the injectors from the computer. You can have all the fuel pressure in the world, but it wont matter if the injector is not pulsing gas into the cylinder like it should! Compression tester, spark tester, fuel pressure gage and noid light are all accessible at your local auto store. All three tests play a very important part in diagnosing a no start condition. Be extremely careful when doing these tests.


A simpler test would be to see if it runs on starting fluid. If it does, then you know you have spark and compression and you simply have a fuel delivery problem