Don Hudd Posted July 15, 2009 Share Posted July 15, 2009 Lately my '89 is hard to start first thing in morning of after sitting for an hour or so. Have to crank it for 30 sec or so before it will start. Well yesterday, I was driving about 15 miles when it stalled, would not start for about 10 mins. then it did. Drove home, no problem. Today, other than the hard start in morning, was running fine. drove about 15 miles, stopped at the store, came out, would not start, it would fire, back fire then stall, finally started, but ran real rough like it was not getting fuel, but I drove it on the back roads to get to my office, got 2 driveways away, it stalled and now will not start, it fires, runs real rough, sputters then dies, it is now on the side of the road. Please help!! Link to comment Share on other sites More sharing options...
BrentS Posted July 15, 2009 Share Posted July 15, 2009 Through my experience with my '89, I would bet that it's the good ol' Mass Air Flow Sensor.But that's just going by your description and the fact that I'm on my 4th or 5th, and I have 140K miles. Link to comment Share on other sites More sharing options...
Don Hudd Posted July 15, 2009 Author Share Posted July 15, 2009 Thanks, I will try anything, is it hard to do, again it is on the side of the road.Don Link to comment Share on other sites More sharing options...
BrentS Posted July 15, 2009 Share Posted July 15, 2009 Oh, If you're actually on the side of the road, there's probably little you can do out there. Maybe try to somehow get it started to limp home or to a service station, or you're likely in need of a tow. Sorry. Good luck. Link to comment Share on other sites More sharing options...
Jim Posted July 15, 2009 Share Posted July 15, 2009 Sounds like the fuel filter to me. Link to comment Share on other sites More sharing options...
Don Hudd Posted July 15, 2009 Author Share Posted July 15, 2009 I got it back to my office, it did start but ran like starving for fuel no power, I am going to change the filter first, will let you guys know.Thanks for all the help!!!!Don Link to comment Share on other sites More sharing options...
BrentS Posted July 15, 2009 Share Posted July 15, 2009 Last week mine was stalling out, mostly when I put it in gear and started stepping on the gas pedal.It turned out to be the fuel pump.No service engine soon lite or codes were coming up, either. Link to comment Share on other sites More sharing options...
Don Hudd Posted July 15, 2009 Author Share Posted July 15, 2009 Ok, it is not the filter, we took the fuel lines off the engine and am not getting fuel, short of a pump, could it be anything esle, again, hard to start when cold, but before this, started right up if sat only 10 mins or so, longer than that it was hard to start. Link to comment Share on other sites More sharing options...
Vincent Vega Posted July 15, 2009 Share Posted July 15, 2009 Fuel pump or regulator. Hook up fuel pressure gauge to the connector on the fuel rail. Below the air box there is a loose green connector. Apply batt voltage to it and it will run the fuel pump. Should get and hold pressure. 45 psi I think. Link to comment Share on other sites More sharing options...
Don Hudd Posted July 15, 2009 Author Share Posted July 15, 2009 Vincent, we just ran a wire from the pos side of battery to the green conector, nothing happened. I assume to key does not have to be on as we went directly from battery, also this would by pass the relay wouldn't it?Thanks,Don Link to comment Share on other sites More sharing options...
Don Hudd Posted July 15, 2009 Author Share Posted July 15, 2009 I am going to chage the pump tomorrow, hope that is all that is wrong. If anyone has any other suggestions, please let me know Link to comment Share on other sites More sharing options...
Vincent Vega Posted July 15, 2009 Share Posted July 15, 2009 Vincent, we just ran a wire from the pos side of battery to the green conector, nothing happened. I assume to key does not have to be on as we went directly from battery, also this would by pass the relay wouldn't it?Thanks,DonYou should be able to hear the pump run. Have a helper stand back by the tank to listen. Your assumptions are correct. Link to comment Share on other sites More sharing options...
Guest Bobby Valines Posted July 16, 2009 Share Posted July 16, 2009 Open the gas cap and put your ear near it. remember it will not run if it already has pressure. Link to comment Share on other sites More sharing options...
Vincent Vega Posted July 16, 2009 Share Posted July 16, 2009 Open the gas cap and put your ear near it. remember it will not run if it already has pressure.That's why you use the green connector. To force it to run. The pressure regulator will ensure the pressure does not get too high. Link to comment Share on other sites More sharing options...
padgett Posted July 16, 2009 Share Posted July 16, 2009 BTW the fuel pump relay is only used for a two second prime on starting, once oil pressure exceeds 4-6 psi, the fuel pump is energised through the oil pressure switch. If the fuel pump relay fails you get extended crank times particularly after sitting.The green lead should bypass the pump relay and an ohmmeter should read close to ground if the wiring and motor windings are good. Link to comment Share on other sites More sharing options...
Don Hudd Posted July 16, 2009 Author Share Posted July 16, 2009 Yes, it was the fuel pump, thanks to all for your help, you guys are great!!!!!Don Link to comment Share on other sites More sharing options...
Vincent Vega Posted July 17, 2009 Share Posted July 17, 2009 Excellent! This would be a good time to evaluate your fuel and brake lines in front of the left rear tire. If they are rusty replace them. Link to comment Share on other sites More sharing options...
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