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Sedans Buick Park Avenue Buick Park Avenue Engine Problems
46 messages, Last post on Oct 11, 2009 at 7:46 AM
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I have a 94 park avenue. It started missing when you are driving it. It slows down and when you give it more gas it gets slower. Pulling back on the pedal speeds it up a certain amount, but it still won't hardly go. Sometimes when it has set a while, it does fine with no problems, acceleration is fine. But now it has started missing again. This time the engine light came on. It barely made it home and went dead. I can't get it started now. It will start a few seconds when you pump the accelerator, then it goes dead. If you hold the starter in and keep pumping, it acts like it is backfiring while it trying to start. Could this just be a fuel filter? The pump is in the gas tank and looks difficult to take off. Thank you |
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Well here goes. Last friday went to go to work and go wouldn't start, would turn over but not fire off. Listened for fuel pump and heard nothing. Just replaced fuel pump and low an behold it still wont start. got 45psi of fuel pressure and not running. The security light has been on for about 4 weeks now and ran fine. Even switched keys with wife and car ran fine but light stayed on. thinking ignition cylinder and switch bad. key also not worn down visually but no way to really tell. not sure how to check resistance on key either. PLEASE HELP!!!!
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Replying to: myparkave (Aug 15, 2009 6:23 pm) You don't say what year your car is. The security light may be something related to an intrusion sensor. The trunk is a common problem. Disconnect the wire to the latch assembly for the theft sensor. a first check is the battery cables. If there are two or more cables on the positive, separate them and check inside the plastic by cutting back looking for corrosion. Funny things happen when corrosion builds up inside and affects the connections. Also check connections at front of ESC plate under the coils.
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Replying to: imidazol97 (Aug 16, 2009 5:12 am)
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Replying to: myparkave (Aug 16, 2009 11:19 am) No fuel to the cylinders as evidenced by gas smell in the exhaust pipe after cranking... check injectors for pulse--put in a 194 type light bulb by straightening the wires to check for electrical pulses. Other obvious check is for fuel pump running at all; but it may be giving low fuel pressure.
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Replying to: imidazol97 (Aug 16, 2009 6:38 pm) |
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my 91 park ave won't start. i replaced the ign. module a few weeks ago and it fixed the problem. but the other day, it died on my daughter and wouldn't start again. I know it's not the security because it's bypassed. since i already replaced the module and the coil pack wasn't arcing out, i replaced the cam and crank sensors. nothing. so i put on a used module that i knew worked. the car started and ran for about 10 seconds then died and won't starts again. i wonder if the coil pack is bad and shorted out the module? is that possible? i don't want to put on another module at 100$ a crack if it's gonna get fried. is there a way to test the coil pack and the module?
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Replying to: dano32 (Oct 06, 2009 12:40 pm) Is the car's engine not turning over at all now? or turning over normally and just not firing anymore? obviously it must have been turning over if it ran for 10 sec then died. Have you tested the fuel rail to see if you have fuel and it is pressurized to the correct pressure? I don't know how to test the coil pack & module, but I think they are pretty reliable. I don't have a '91, but guess the coil pack is made up of 3 separate coils that each control 2 plugs like the later models? I doubt all 3 would go bad at once. Of all the parts you've replaced, I would say the crank position sensor would be the part most likely to be a bad replacement part. Sometimes they are just flaky out of the box. Or that's what I've read a few times. Whether that means someone put their bad part in the box and returned it to the store, I don't know. Normally electrical parts are no return, but it happens. 
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Replying to: dano32 (Oct 06, 2009 12:40 pm) Take a 194 little light and straighten the prongs and plug them into your injector. Does it flash while you crank to show the injectors are being pulsed? Does the fuel pump prime when you turn the key to ON? Listen at the tank while someone turns the key on to check for pump running. But it can still be bad. Then try a fuel pressure gauge (I think local box stores loan those out) to see what the fuel pressure is.
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Replying to: imidazol97 (Oct 10, 2009 11:01 am) |
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