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Spraying starter fluid air intake3/1/2024 We are each about 2 1/2 hours away from the vehicle which is parked at his mother-in-law's home. Unfortunately I can't do it from a distance and he also lives quite a distance from where the car is parked (he was there yesterday/today). I did counsel him previously to diagnose first before replacing parts. That could be either a fortunate assumption or an expensive but wrong assumption due to not performing adequate diagnostics. He has just some basic tools and if I can get any ideas or procedures to pass on to him that would be great. What can I tell him to try or test next? He's 2 1/2 hours away from me, BTW, so I'm trying to do this over the phone with him. He checked for any trouble codes and the OBDII system shows no codes. The car was running fine before it was parked. The fuel gauge shows about a half tank of gas. So we know the starter is OK and there must be some fuel delivery problem (or other problem?). He tried it three times and each time after spraying it will run for a second and die. Now with the starting fluid sprayed in the intake, the engine runs for a second and dies. I told him to spray some starting fluid in the intake and see if it starts that way. My son and my DIL replaced the bad battery. The car has been sitting for 3-6 months she says. There, they're really gonna' stick it to you at around $280 to $300 (US).My daughter-in-law's 2002 Mazda Tribute/Escape V6 with automatic transmission, 2WD. The fuel pumps that are used in all of the GM Vortec equipped vehicles are expensive, especially if you buy them at your local auto parts store. Seconds after the engine starts YES Where To Buy The Fuel Pump And Save $$$ W/ fuel pressure gauge) YES PCM disables fuel injectors a few I've created the following chart to help you tell the difference between the two so that you can find out which one is the one causing your pickup (or SUV) not to start (since PassLock failures (activations) and bad fuel pumps are a very common problem): Bad Fuel Pump to PassLock Activation Relationship Symptom PassLock Fuel Pump Engine cranks but won't start YES YES Engine starts with starting fluid (momentarily) YES YES Ignition system delivers spark YES YES Passlock MIL flashes on instrument cluster YES Engine starts momentarily then stalls YES Fuel pressure at spec (as checked If you then spray carburetor cleaner or starting fluid into the intake, the engine starts (although momentarily because the engine will stall again as soon as the starting fluid -or carb spray- you sprayed into the throttle body gets consumed).īecause this behavior mimics a failed fuel pump, it unfortunately leads a lot of folks to believe that the fuel pump has failed (when it hasn't). This is due to the fact that when the Passlock system arms itself on your GM pickup or SUV, the engine will crank but won't start, since the PCM has disabled the fuel injectors. One of the things that can have you replacing a good fuel pump is an anti-theft system (PassLock) failure. Difference Between A Bad Fuel Pump And An Anti-Theft System (PassLock) Failure The next step is to confirm the exact fuel pressure with a fuel pressure gauge to be absolutely sure. This confirms that the fuel pump is starting to fail.
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