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Buick Park Avenue
#48 of 461 1998 Buick Park avenue engine problem
Jul 13, 2007 (3:54 am)
The check engine light had been on for some time but car ran rough occacsionally but gas mileage was fine. My buick park avenue, 1998, was draining coolant, which we replaced. after several days, I drove a 10 mile drive, waited three hours and white smoke came out the exhaust. I drove to an auto parts place and they added water to the overflow tank. the engine temp had risen to 240 degrees. The car sat for one month and now will not start. though it tries..... Battery is strong for I disconnected it during month of inactivity. any thoughts about what problem may be, and is it worth repairing..... We need this car for a student coming to live with us to drive. link title
#49 of 461 Re: 1998 Buick Park avenue engine problem [buickstuck]
Jul 13, 2007 (4:20 am)
Your car had coolant disappearing and that was warning sign to immediately find the problem. You don't say if you've had the car since it was new so we don't know if it's been repaired before. The plastic upper intake can develope leaks that allow the coolant to get into the air stream that goes into the motor. That may be the cause of the roughness which probably occurred when the car was hot and the coolant was under pressure from the radiator cap and that pressure forces coolant into the intake faster. So the car developes a roughness.
Since the turned off the car and let it sit, there probably is coolant that had gone into the intake area, onto the valves, and coolant probably was in the oil. The coolant going in after you turned off the motor has probably filled a combustion chamber and hydrolocked the motor. Or if it is turning over, the plugs may have coolant on them keeping them from firing.
The upper intake is repairable for $500 and less at a local good mechanic. Your major concern is that the coolant in the oil may have damaged the bearings due to the acidic nature while sitting.
The overheating may be just because the coolant in the radiator was low and should have been refilled. PUtting it into the overflow reservoir doesn't get it back into the radiator immediately.
You need to have the car towed and checked out if you don't do repairs yourself.
#50 of 461 1994 BUICK PA STOPPED RUNNING
Jul 13, 2007 (6:03 am)
My son purchased a used 1994 buick pa for a dealership on 7/7/07. It now shuts completely down after about 10 min. of running time. Sometimes it will re-start right away and other times it must set for 20 - 30 min. This is a bad deal since he used all of his cash to purchase the car, only put 10 or so miles on it before this happen and dealership will not take it back.
Any suggestion on what may be causing this?
#51 of 461 Re: 1994 BUICK PA STOPPED RUNNING [saw5]
Jul 13, 2007 (6:19 am)
Get the codes scanned at Advance Auto, Autozone, PepBoys, nearby. You may be able to scan codes on that with a paper clip shorting the A and B pins under the dash then turn the key on. I lose track of which cars are OBD I and OBD II that require a scanner.
Most likely is crankshaft position sensor which doesn't seem to clearly show up in codes from what I've read on other sites.
I believe someone suggested spraying water on the sensor area behiind the crank pulley at 3 o'clock as a test. That cools it down. You might try visually locating the sensor first.
Is the fuel pump still pumping when the turn the key on? It should pump for a few seconds then shut off. Is there fuel at the Schrader valve on the motor on the fuel lines? Use a cloth to catch gas and see if it's as highly pressurized as when the car first starts or if it's lost pressure.
#52 of 461 Re: 1998 Buick Park avenue engine problem [imidazol97]
Jul 13, 2007 (8:27 am)
Thanks for a quick response.... I will arrange to get it towed to a reliable, well recommended mechanic..... I appreciate your help.
#53 of 461 Re: 1998 Buick Park avenue engine problem [buickstuck]
Jul 13, 2007 (8:57 am)
Come back and let us know how it works out.
#54 of 461 Re: 1998 Buick Park avenue engine problem [buickstuck]
Jul 13, 2007 (1:01 pm)
Hopefully if it's upper intake manifold leaking it's in time to avoid damage to bearings from sitting with coolant in the oil. You didn't mention anything about coolant dripping from the motor so that eliminates waterpump for coolant loss for me.
Because I've heard about bearing damage from running a motor with a leak too long in other discussions, I'd recommend having someone check about what's happening. I hope there isn't damage. The good news is the motor isn't hydrolocked (cylinder filled with coolant) because it seems to be turning over. Hydrolocked motors break starters and do other damage.
Not starting sounds like a friend's car I helped with that had coolant on plugs from an intake that was leaking and repaired. It wouldn't start up after the 4 days because the plugs were wet.
The chugging sort of diesel like sounds like his car before he replaced the upper manifold.
#55 of 461 Re: 1994 BUICK PA STOPPED RUNNING [imidazol97]
Jul 16, 2007 (4:40 am)
Thank you for the help. We check the ign. module first and it was o.k. Pump and relay were good. The car is OBDll so it does require a scanner so we could not jump the circuit. So, after about 4 hours of trial and error we purchase the crankshaft position sensor and we were going to install it Sunday, When my son said he saw one message on another site were a man used the replacement key (2nd set of keys) to start/run the veichle. He was having a similar problem. Like that would be the problem. But, go ahead and try.
So far the car has not stalled and runs great. I did not know that the chip within the keys could go bad, Or is this just a fluke.
#56 of 461 2000 PA Motor Mount Help!
Jul 17, 2007 (9:57 am)
The dealer replaced a right front motor mount on my 2000 PA to cure a "clunking" problem. It turns out that the problem is in the transmission and mot a mount problem. Nonetheless, the dealer insists that the mount was bad and the $421 that they charged to replace it was justified.
I have the old mount and don't think that there is anything wrong with it. I have mot been able to find any specifications for the mount (GM was no help at all!). Does anyone know of a way to check the old mount other than to remove the one that they put in and compare it to the old one?
#57 of 461 Re: 1994 BUICK PA STOPPED RUNNING [saw5]
Jul 17, 2007 (10:01 am)
If the chip in the key doesn't make good contact or the wires are breaking in the steering column where it pivots for the tilt wheel, the resistance will be wrong. The car won't crank when you move the key to crank. The third time you try, the VATS will lock out the start for 3 minutes or 4 minutes. After that it will try again to read a new chip in he key.
If the resistance changes while the motor is running, the system will set a code that there's a problem reading the key resistance and will stop trying to use that as a security check. The security light will be on all the time. But the car will crank and start normally.
It doesn't sound like your problem.