Understanding The Background Of 2004 Buick Park Avenue Ultra | 2004 buick park avenue ultra

Posted on

By Paul Brand

Used 2004 Buick Park Avenue for sale - Pricing
Used 2004 Buick Park Avenue for sale – Pricing | 2004 buick park avenue ultra

(Minneapolis) Star Tribune

Q: My 2004 Buick Park Avenue Ultra with 60,000 miles misfires when restarted hot. The missing lasts for no more than 30 seconds. My mechanic is stumped. Any thoughts? Other than this, the car runs beautifully.

A: If the engine misfire occurs only during a hot restart, checking fuel pressure is the place to start. If the ready fuel supply in the fuel rail on top of the engine is overheated immediately after shutdown, it may percolate or boil the fuel. That would aerate the fuel with bubbles, causing a loss of fuel pressure at restart. As fresher, cooler fuel reaches the rail and injectors, fuel pressure comes back up and the engine smooths out.

Another possibility for a loss of fuel pressure on a hot restart is a leaky fuel injector or fuel pressure regulator diaphragm. These issues would also bleed down fuel pressure right after shutting off the engine, causing a restart misfire. Even a sticky intake or exhaust valve or a heavy carbon buildup on a valve could cause this symptom. GM has recently recommended adding a fuel treatment to the fuel tank at every oil change to prevent this. Sea Foam is designed for the same purpose.

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra – Spotless! 35,000 Miles – YouTube | 2004 buick park avenue ultra

Because of the history of intake manifold gasket issues with the 3.8-liter V-6 in your vehicle, I’d be a little concerned that cooling system pressure might be forcing coolant into a cylinder at shutdown, causing the initial hot restart misfire.

Q: My wife has a 2006 Chevy Tahoe with 109,000 miles on it. Recently, after the car was driven on the freeway for an hour or so and then put through a stretch of stop-and-go traffic, the oil pressure dropped to zero and the low oil pressure warning alarm went off. She pulled the car over, shut it off and restarted. The issue seemed to go away.

After the car was parked for an hour or so, she went out to start it. The oil pressure gauge went to 40 pounds per square inch for a few seconds and then dropped to zero. After an oil and filter change, the oil pressure was a steady 40 psi at idle and 55 to 60 psi at highway speeds.

Used 2004 Buick Park Avenue for sale - Pricing
2003 Buick Park Avenue Overview | Cars.com | 2004 buick park avenue ultra

Several days later, after driving the car about an hour on the freeway, I put the car into park, the oil pressure dropped and the low pressure warning alarm went off again. Bumping the engine speed up to 1,500 rpm or so brought the oil pressure back up.

Diagnosis from the Chevy dealership is that my oil pressure is erratic. They think that dropping the oil pan and replacing an O-ring on the oil pump pickup will fix the issue, with a cost estimate north of $800. I suspect a bad oil pressure sender or that the oil pressure sender is getting a bogus reading due to sludge buildup on a screen between the oil system and the oil pressure sender. Your thoughts?

A: Temporarily installing a mechanical oil pressure gauge in parallel with the electrical oil pressure sender would help isolate whether the issue is with the sender/gauge or a mechanical issue with the engine. By symptom, there appears to be a bleed-off of oil pressure somewhere in the engine. At higher rpm, the oil pump is supplying enough oil flow to keep the pressure up even with the bleed-off. But at idle, the bleed-off is enough to drop the oil pressure to dangerous levels. The somewhat intermittent nature of the symptoms may be due to variations in oil temperature and viscosity — the hotter the oil, the lower the pressure.

Where could this bleed-off be occurring? A defective or incorrect oil filter, which you’ve already addressed; the oil pump pickup O-ring; or a missing or defective oil bypass valve in the oil filter mount — all easy to check after removing the oil filter.

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Pictures, History, Value, Research, News … | 2004 buick park avenue ultra

One final thought: Oil heavily contaminated with gasoline would be thinned significantly and generate lower oil pressure. Give the dipstick the sniff test.

— Brand is an automotive troubleshooter and former race car driver. Email questions to Media Include a daytime phone number.

Understanding The Background Of 2004 Buick Park Avenue Ultra | 2004 buick park avenue ultra – 2004 buick park avenue ultra
| Encouraged for you to my blog site, in this particular occasion I’m going to explain to you with regards to keyword. And after this, this is actually the primary graphic:

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Specs and Photos | StrongAuto | 2004 buick park avenue ultra

Why not consider impression earlier mentioned? is usually which remarkable???. if you think maybe and so, I’l d demonstrate a few impression yet again under:

So, if you want to secure these awesome graphics related to (Understanding The Background Of 2004 Buick Park Avenue Ultra | 2004 buick park avenue ultra), click save icon to save these shots to your laptop. There’re available for down load, if you love and want to take it, click save logo in the page, and it will be instantly downloaded in your home computer.} Finally if you want to grab unique and latest image related to (Understanding The Background Of 2004 Buick Park Avenue Ultra | 2004 buick park avenue ultra), please follow us on google plus or bookmark this site, we attempt our best to present you regular up grade with all new and fresh images. Hope you love keeping here. For most upgrades and recent news about (Understanding The Background Of 2004 Buick Park Avenue Ultra | 2004 buick park avenue ultra) pics, please kindly follow us on tweets, path, Instagram and google plus, or you mark this page on bookmark section, We try to give you up grade regularly with fresh and new pictures, like your surfing, and find the best for you.

Here you are at our site, articleabove (Understanding The Background Of 2004 Buick Park Avenue Ultra | 2004 buick park avenue ultra) published .  At this time we’re delighted to declare we have discovered an awfullyinteresting contentto be discussed, that is (Understanding The Background Of 2004 Buick Park Avenue Ultra | 2004 buick park avenue ultra) Many individuals attempting to find details about(Understanding The Background Of 2004 Buick Park Avenue Ultra | 2004 buick park avenue ultra) and definitely one of these is you, is not it?

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Review, Ratings, Specs, Prices, and Photos … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra – XXI Century Cars | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Buick Park Avenue Sedan Models, Price, Specs, Reviews | Cars.com | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2003 Buick Park Avenue Reviews and Rating | Motor Trend | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Find used 2004 Buick Park Avenue Ultra Supercharged sun leather … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue For Sale in Lithonia, GA – Carsforsale.com | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra 4dr Supercharged Sedan In Detroit … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Overview | Cars.com | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra Sedan 4D Pictures and Videos – Kelley … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue New Car Test Drive | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Used 2004 Buick Park Avenue Ultra at Boston Auto Sales | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Buy Buick Park Avenue Accessories – Showtrix | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra 4dr Supercharged Sedan In Sioux City … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra 4dr Supercharged Sedan In Detroit … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
White – 2004 Buick Park Avenue Ultra – Light Cashmere Interior … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra in Lexington, NC | 1G4CU541944148109 | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra 4dr Sedan In Detroit Lakes MN – Wayne … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra 4dr Supercharged Sedan In Pompano … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
BUICK Park Avenue specs – 1997, 1998, 1999, 2000, 2001, 2002, 2003 … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra 4dr Supercharged Sedan In Detroit … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Buick Park Avenue Illinois – 27 ultra Buick Park Avenue Used Cars … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Buick Park Avenue For Sale – Carsforsale.com | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Photos, Specs, News – Radka Car`s Blog | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra In Lexington NC – LexingtonAutoSales.com | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Used 1997 Buick Park Avenue for sale – Pricing | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Amazon.com: 2004 Buick Park Avenue Reviews, Images, and Specs … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick PARK AVE. ULTRA !! | Blueslade Motor Cars,LLC Sarasota FL | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra 4dr Supercharged Sedan In Pompano … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
2004 Buick Park Avenue Ultra 4dr Supercharged Sedan In Detroit … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Buick Park Avenue – 83 Used ultra wheels Buick Park Avenue Cars … | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Buick Park Avenue For Sale in Natchez, MS – Carsforsale.com | 2004 buick park avenue ultra

Used 2004 Buick Park Avenue for sale - Pricing
Buick Park Avenue Ultra Photo Gallery | CarParts.com | 2004 buick park avenue ultra