Question about 1999 Pontiac Montana

1 Answer

AFTER CHANGING OIL AND FILTER ON 1999 MONTANA OIL PRESSURE LIGHT COMES ON AT IDLE AS ENGINE REACHES NORMAL OPERATING TEMP. I REPLACED SENDING UNIT AND PUT AC DELCO OIL FILTER ON ,WHAT SHOULD I CHECK NEXT,

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,101 Answers

Which oil sending did you change .there is 2 on that motor. 1 is next to the oil filter and the other is in the oil pan next to the oil plug

Posted on Dec 04, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Pontiac Bonneville(2000) oil pressure sending unit

The oil pressure sending unit is located behind the oil filter, Threaded into an aluminunm housing. It has wiring that plugs into the sending unit. The oil filter has to be removed and you will need a deep well socket and a 6 inch extension. Change the oil and the sending unit together.

Posted on Feb 02, 2009

  • 2 Answers

SOURCE: Oil light keeps coming on at an idle

ok. oil ight is probably nothing more than a faulty pressure switch.You can have pressure checked at same screw in port. 15psi is ok...just. very cheap to replace. Ign control module is probably the cut-out fault. You cant really test it; repair by substitution is the trick.

Posted on Apr 08, 2009

blueextc3221
  • 15935 Answers

SOURCE: changing the oil pressure sending unit on a 1996 2.2 pontiac sunf

Under hood, driver side, front engine area, below cylinder head, where engine meets transaxle housing mounted in block

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Posted on Apr 23, 2009

  • 400 Answers

SOURCE: where is the oil pressure sending unit located on

Take the passenger front wheel off. Look up under the car by the power steering pump, you'll see the sending unit, it's up and back from where the oil filter is. There is a special GM oil sending unit socket, I'm sure you will be able to buy or barrow one from your local parts store! Make sure to have a catch pan under it when you take it out, they can leak a good amount of oil out when you remove it.

Posted on Oct 26, 2009

anthonyja791
  • 2 Answers

SOURCE: Check Engine Light on and flashing on Montana 2001

MThe problem is most likely the catalystic converter.ost

Posted on May 16, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

High temp low oil pressure light comes on after driving for a few minutes, then off when engine at driving rpm. At stop light (idle or low rpm) light comes back on. Normal driving it goes out.


You need to find out why you have low oil pressure. It is normal that as engine rpm's increase, the oil pressure will rise- the oil pump is moving oil faster. Even though your light goes out, you could still have critically low oil pressure. There should be sufficient pressure at idle to keep the light off. The light will come on when your oil pressure is almost nil- I believe for some it's as low as 8 psi. Normally, oil pressure at idle is specified anywhere from 15 to 40 psi. You would have to check specifications for your Expedition. To verify oil pressure, hook up a mechanical gauge at the oil pressure sending unit on the engine block. Check with a local shop.

The causes run from easy, simple to budget busting ruin. Low oil level, wrong grade oil, real old oil, oil leaks, internal oil leaks, worn oil pump, worn crankshaft bearings. It was pretty common on older very high mileage cars to have a fluttering oil light at stops and idle. It was time for a rebuild, or time to look for another car.

Jul 06, 2015 | 2003 Ford Expedition

3 Answers

Oil light on after engine warm-up on idle


this means a mechanical gauge test is required to check actual pressure warm idling if low below 20 psi then the oil pressure pump relief is stuck open or engine bearing are worn

May 15, 2014 | 2005 Opel Astra 1.4

1 Answer

Why do oil light come on after replaceing oil sending unit on 2005 dodge carvan


The engine produces oil pressure from the resistance(clearance ) between the bearings and crankshaft and the sending unit lets you know when there is no pressure. These switches ground the light in the dash around 5 psi. So as the engine gets warmer then the oil gets thinner with large amounts of clearance pressure drops. Test system with mechanical unit normal hot idle pressure should be 30-45 psi if low raise idle speed comes up then engine bearings are worn.

Apr 26, 2014 | 2005 Dodge Grand Caravan

1 Answer

Oil pressure is normal until it reaches200 degrees then oil presure drops to 10 pounds at an idle but give it gas and it goes up when its first started oil pressure is at 40 pounds until it reaches 200...


Oil pressure drop after reaching operating temp is normally caused by worn main bearings (depending on mileage).Worn bearings will allow pressure drop at idle and increase when accelerated above idle.

Jul 14, 2011 | 1999 Chevrolet Blazer

1 Answer

My oil light comes on after the engine warms up and stays on the entire time i'm driving. We've changed the oil and filter and keep a check on the levels but the light continues to come on. Any...


you may have a bad oil sending unit the oil light works off of oil pressure i would start by changing the oil sending unit and if the light still comes on then you have bigger problems. get a mechanical oil pressure gauge and hook up and check the oil pressure after the engine has warmed up to operating temp you should have at around 30 psi but can survive with 10psi but might be time for a rebuild. if no oil pressure then you might have a broken shaft between the oil pump and the distrubuter. if the engine is running and not making any out of the normal ticking, knocking sounds probably just the sending unit though, they are about 25 dollars and i believe its right above the oil filter on the 6 cylinder.

Dec 07, 2010 | 1999 Plymouth Voyager

2 Answers

Oil gauge drops all the way down and check gauge light comes on


Could be the oil pressure sender has gone bad or worse case scenario the oil pump has worn out. Check the oil presssure sender first, if it is leaking around it then that is the cause, if not then you may be looking at an oil pump. Just had a 03 ram 2500 doing the same thing and it was the sender, but that was a hemi and it had 230000 miles and a month later had to replace the oil pump for same issue.

Mar 17, 2010 | 1999 Dodge Durango

1 Answer

Oil light on at stop


engine oil pressure may be low remove oil pressure sending unit and install a pressure gauge check for pressure while warm if pressure is ok replace oil pressure sending unit oil pressure at idle should be between 5-15 psi at min

Nov 17, 2009 | 2006 Dodge Stratus

1 Answer

Car was parked for a few months, not being used. Now the oil light comes on after the engine reaches operating temp. There is no valve train noise, and engine runs just fine.


Have the oil changed to remove any moisture condensation in the oil. Air in the oil deceives the sending unit and sludges up the oil filter.

Nov 15, 2009 | 2003 Oldsmobile Alero

2 Answers

Dodge caravan '98, oil light on, plenty of oil


If the engine is not making any knocking type noises, check the oil pressure sending unit. If it is leaking oil then it needs to be replaced along with removing the rubber plug from the connector and cleaning the terminals. If the oil light still comes on then the oil pressure is definately low and could cause engine failure.

Jul 03, 2009 | 1999 Plymouth Grand Voyager

2 Answers

Oil light comes on after car is warmed up


MOST COMMON ISSUE WITH THE OIL LIGHT IS THE ENGINE OIL PRESSURE SENDING UNIT, REPLACE IT, ALSO 3/4 SCALE TEMP IS NORMAL, THAT IS WHEN THE COOLING FAN KICKS ON, ABOUT 230 DEGREE'S F.

Dec 11, 2008 | 1999 Chevrolet Cavalier

Not finding what you are looking for?
1999 Pontiac Montana Logo

155 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

75197 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7782 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...