How do you test if fuel is delivered?

Asked by Oct 15, 2014 at 02:18 AM about the 1999 INFINITI QX4 4 Dr STD 4WD SUV

Question type: Maintenance & Repair

Purchased vehicle which was stored some months. Fuel gauge indicate 1/3 however
not sure if gauge is correct, engine cranks but fails to start. It's possible no gas
therefore want to determine if fuel is being delivered.

2 Answers

33,365

How long has it been sitting? It's possible that the fuel has turned to varnish. You might just have to drop the tank and get it professionally cleaned along with the fuel lines.

2 out of 2 people think this is helpful.

Even if there is fuel pressure in the rail the injectors are probably clogged, not to mention water in the tank. Get a helper and spray some starting fluid, ether, in to intake while cranking..you can take filter out or spray right through it. If it runs for s few seconds, you are not getting fuel to or past injectors.

1 out of 1 people think this is helpful.

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