Question about Isuzu Pickup

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92 Isuzu pickup first start of day rough

First start of the day turns over but takes a few times. Giving it some gas on the third or so try usually gets it started. May idle rough for a little bit after. Every start after that is perfect.

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  • Isuzu Master
  • 2,122 Answers

Hi Dustin, I'm not sure if we're talking about a diesel vehicle or one with fuel injection or using a carburetor? If it has fuel injection, have the temperature sensor (with two cables) inspected for correct operation. If we're dealing with a vehicle with a carburetor, inspect the automatic choke operation. If it's diesel have the fuel filter pump housing inspected for air leakage. If it is diesel and the problem becomes more apparent, the injector pump and injectors may require repair, service and adjustment. Regards John

Posted on Nov 28, 2013

Testimonial: "Thanks John. It's carbureted, and we just happened to check that choke operation. It wasn't very loose, so we sprayed carb cleaner in while running and hand wiggled the choke for a while and it seemed to loosen up. Won't know for sure if that helped till tomorrow morning, b/c after that first rough start it starts up like a dream for the rest of the day."

  • Dustin Gauthier
    Dustin Gauthier Nov 28, 2013

    Thanks John. It's carbureted, and we just happened to check that choke operation. It wasn't very loose, so we sprayed carb cleaner in while running and hand wiggled the choke for a while and it seemed to loosen up. Won't know for sure if that helped till tomorrow morning, b/c after that first rough start it starts up like a dream for the rest of the day.

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SOURCE: died going down road twice the third time will not start

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SOURCE: Stalls after getting gas then starts fine. Also noticed it idles rough at other times. No trouble codes. Any thoughts?

Try a tune up

Posted on Apr 21, 2009

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SOURCE: Toyota Pickup 1991 4cyl 22re - Trouble starting sometimes

Sounds like the switch on the clutch pedal needs adjusted. Is the floor mat bunched up under the pedal, I've seen that. It could also be dirty ground connections. There are several. Not only the battery ground but smaller ones also. A bad ground can mean low voltage to the ECM and injectors. Does the start solenoid click. If it does may be bad battery connections on either end. If it doesn't may be bad connections in the small wires to the solenoid. The alternator could be consuming the available connections when the battery is recharged from starting then the ECM and injectors can have enough. Why it would run rough for a while. The first place to look is always the electrical connections. A lot of people have paid for new starters because of bad connections. I had a friend kept buying alternators from his trusted mechanic because somebody had removed the ground wires from his engine to the chassis. (This was before he asked me to look at it. Of course!)

Posted on Jun 06, 2009

pippall
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SOURCE: idle is high after changing the timing belt

Replace the idle speed control valve.Very common on fords this fails.And what you are telling me are the same symtoms.Good luck m8.

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SOURCE: 92 Honda Accord LX- idles rough when started up

sticking valves. the short run of the engine free's them enough to enable runnig

Posted on Aug 14, 2009

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