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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / February 2005Truck Cuts Off Question
Hi, my 1996 Sonoma just cuts off sometimes when I am driving. After this happens, the car will not start. When I turn the key, it acts like it wants to start, tries, but just won't. If I wait about 10 - 15 minutes, the car will start. Sometimes, I am lucky and it will start up immediately. This only happens intermittently and the mechanic said if it started when he got it that he couldn't do anything. I understand that as there would be no problem! But every couple of weeks, maybe a month, then the car will cut off, not when stopped, just while driving it, 30 - 40 miles an hour, the car just cuts off. Things in the car start blinking (on the display) sounds clicking (not when turning key.) Just strange. Hoped someone might have some idea where to start. Thank you. (I posted this in a older group, sorry, no traffic there.) >Hi, my 1996 Sonoma just cuts off sometimes when I am driving. After >this happens, the car will not start. When I turn the key, it acts [quoted text clipped - 10 lines] >Things in the car start blinking (on the display) sounds clicking (not >when turning key.) This sounds like an electrical problem. I mean you only have 3 systems to consider 1) ignition 2) fuel 3) air supply so out of those three, your "blinking" display sounds like you're losing electrical continuity to your vehicle / ignition system. >Just strange. Hoped someone might have some idea where to start. >Thank you. With the electrical system. Starting at the batter and/or alternator, and working through the system, checking cables, connectors, continuity. You could even have corrosion on your terminals and even with a snug-fitting cable clamp, you could have enough of a voltage drop between the two to cause problems. Put a lead from your voltmeter on your cable clamp and the other lead on the battery terminal. You should see 0 volts DC. Keep watching that while someone cranks the engine, you should still see 0 volts. If you see anything, clean the connectors. And what is your battery voltage anyhow. Has anybody ever looked at that? What is it with the engine off, and engine on? Lg >(I posted this in a older group, sorry, no traffic there.) No to the second last question. I too thought it was more electrical than anything. The battery meter in the display seems to indicate a normal voltage, but that is misleading I am sure. Not even sure how to check the voltage. But I do have a meter, so I guess it's like checking any other battery's voltage. Thank you and I will check what you said. >No to the second last question. I too thought it was more electrical >than anything. The battery meter in the display seems to indicate a >normal voltage, but that is misleading I am sure. Not even sure how to >check the voltage. But I do have a meter, so I guess it's like >checking any other battery's voltage. Thank you and I will check what >you said. Yes, especially check your cable clamps where they connect to the battery, in fact, take them off the battery and clean both the clamps and terminals, then reinstall. That way, you can cross that idea off the list of possibilities. Read battery voltage by taking the + lead from the meter and put it on the + terminal, and the - lead from the meter and put it on the - terminal. Then note the voltages with engine off, and then engine on. 12.6 is ideal voltage ( full charge ) for battery with engine off. With engine on, alternator is feeding the battery so voltage should be 14 point something or thereabouts. Be careful when you do this test, to stay clear of fan belts, fans, hot engine pipes, high-voltage spark plug wires, etc etc. IOW, be careful period. Safety First. Lg And question rolls over answer, killing it instantly. -Dave >Hi, my 1996 Sonoma just cuts off sometimes when I am driving. After >this happens, the car will not start. When I turn the key, it acts [quoted text clipped - 15 lines] > >(I posted this in a older group, sorry, no traffic there.) Had the same symptoms when the ignition module in my Eldo failed. FWIW YMMV DFB "When a legislature undertakes to proscribe the exercise of a citizen's constitutional rights it acts lawlessly and the citizen can take matters into his own hands and proceed on the basis that such a law is no law at all." - Justice William O. Douglas Ignition module. > Hi, my 1996 Sonoma just cuts off sometimes when I am driving. After > this happens, the car will not start. When I turn the key, it acts [quoted text clipped - 15 lines] > > (I posted this in a older group, sorry, no traffic there.) |
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