Question about 1998 Buick Park Avenue

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98 buick ultra misses under a load. super charger was off for 6 mo. (fixed now). service engine light came on before and after fix on super charger idler pulley. i thought maybe just carboned up from no forced air, but no. only misses on slow acceleration or going uphill in OD. goes away when i stomp on it. 204,000 miles. not really worth an $800 solution. any ideas?

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Replace plugs and plug wires at the same time to prevent carbon tracking between wires and plugs. Carbon tracking will make a 3800 do what yours is doing. Also put some premium fuel in it for a few days.

Posted on Jul 12, 2009

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Posted on Jan 02, 2017

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94 Buick Park Avenue that stutters under a light load I have a 94 Buick Park Avenuethat ... Buick Century 97 runs rough and stutters when cold and gas applie Engine runs rough ... I have a 1994 buick lesabre it starts ok but stutters and stalls.

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Hi-Speed Miss under load on Park Avenues - Both Ultra and Non-supercharged


Dear sir/madam,

I think he crank sensor is defective, or installed wrong. The cam sensor controls fuel injector timing and can cause sputtering and hesitation. The timing must be correct for the injector to fire when the intake valve is opening. Check for any scratch marks on the cam sensor. In addition, check the cam interrupter magnet and be sure it in place and not damaged.

The ECM sends a 5-volt reference signal to the CTS sensor. As temperature changes in the coolant, the electrical resistance of the CTS sensor also changes. The best way to test this sensor is with a scanner. When the engine is cold, engine coolant temperature should measure near the same as the ambient temp. Another way to test the CTS sensor is to measure voltage from the time the engine is started, until it warms up. Record the voltage changes as the engine warms up to operating temp. i.e. 120, 140, 160 & 180. You should see close to the full range of voltage (5.0-1.0V) during this test. If it does not change from what you first measured cold, replace the sensor!


thanks
good luck


"Don't forget to rate the solution"

Jul 27, 2008 | 1999 Buick Park Avenue

1 Answer

I have no check engine light on my 1996 buick park avenue, how do i pass emissions test without it?


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injoy

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I have a 98 Buick Park Ave Ultra. It's a slight


If the light is on the engine computer will have a trouble code or codes, which may help you towards solving the problem. Have the computer scanned for the codes. Go from there. Good luck.

Feb 21, 2012 | 1998 Buick Park Avenue

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I can't find a diagram of the belt installation for my 97 Buick Park Avenue. Can you help?


I can help, a belt diagram for a 1997 park ave, some of these cars come with a super charger, heres a diagram that list both the regular belt and then the charger belt, use what is needed, hope this helps.cfccfd3.gif

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1 Answer

Sputtering, Missing, Or maybe not getting fuel.


If you have already done a tune-up changed the wires, plugs the only other thing i can think of would be the fuel pump. If you have a check engine light on along with the other lights your local advance auto parts would check this at no charge. That may give you a clear view of what is wrong. Hope this helps.

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1 Answer

Miss


are any of the plugs carbon tracked, sometimes a cracked plug won't show up as a miss unless under a load

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