Question about 2007 Buick Rendezvous CXL SUV

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Buick rendevous oil was low with a tick changed the oil added an additive to reduce the tick. Vehicle isnt better biw it runs rough at idle and doesnt have any get up and go. ticking speeds up with acceleration

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That is a lot going on with a vehicle that ne, do you have any warranty left on it ?
Where is the oil going ? does it leak ect.
The ticking is probably a lifter.
Take it to a reliable auto center before it is too late.

Posted on Feb 04, 2010

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My oil light comes on after higher speeds while idling at a traffic light.


It may be your oil pressure transmitter switch at fault. There's many different oil pressure transmitter switches. Here are some generic images:
oil pressure transmitter switch Google Search
It could also be that your vehicle is due an oil/filter change.
Is your oil level ok?

It's unlikely to be your oil pump at fault.
  1. Check your oil level
  2. Is the vehicle due an oil/filter change?
The oil pressure transmitter switch simply tells the engine 'low oil pressure'. This usually happens at idling speed due to a faulty transmitter switch, low oil level or there's a need for an oil change as the old oil is no longer up to the job. Oil pressure switches are easily changed.

The important thing is that you aren't getting a warning light when driving at speed. If your oil level is okay and it isn't due an oil/filter change - it probably is the oil pressure switch at fault.

For your own peace of mind try adding an oil additive.


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Nov 03, 2015 | Cars & Trucks

1 Answer

00 lincon navigator 5.4 oil pressure drop's low and light comes on , engine idles rough when pressure drops ,then pressure return s to normal range ,light goes out ,engine runs perfect. Is it my oil


Sounds more like an engine idle issue than a oil pressure issue. If the engine idle drops too low, the oil pump cannot provide sufficient oil pressure. If there is no oil light when the engine is idling normally, then there is no problem there.

Dec 25, 2014 | 2000 Lincoln Navigator

1 Answer

Replace lifters


First how many miles on the vehicle and how long was the car run low on oil? Most cars today have an integrated fuel pump that will shut off if the engine is low on oil. Most likely you have either gotten some dirt into the lifters causing the noise so I would start with a fresh oil change and filter and add a good oil additive to help clean the insides of the engine. I personally like Rislone products because I have had good luck with them but any good additive that quiets lifters will have a detergent to help clean the lifter and help prevent lifter bleed-down.

Aug 22, 2014 | Chevrolet Cobalt Cars & Trucks

1 Answer

I added too much oil what to do?


I think that sparkplags get wet. Replace it.

Jul 26, 2013 | 2000 Isuzu Rodeo

1 Answer

Engine Power Reduced, Rough Idle


Driving around for a couple days- is one thing

Not caring at all & driving for weeks with a check light
on,hope for the best & no damage or at least something
you can afford

Low oil level by a few quarts,really,how's that possible?

Jan 24, 2013 | 2008 Pontiac G6

1 Answer

Hi, my1997 dakota with a 3.9 engine has a rough idle, has plenty of power i replaced plugs, wires, cap,pcv, rotor and added fuel cleaner. its a little better but still has a rough idle


My uncle worked at a dodge dealership as a head mechanic for over 30 years and he also found all of the 3.9 liter engines to have the rough idle. The rough idle cannot be explained but it can be made worse by buildup on the engine. I have a 2001 Dakota sport with the 3.9 and mine does it too and one of the first times i drove it it stalled and its not a Manuel transmission. But onc I changed the oil and put Lucas oil additive as well as regular additives to my gas every month or so it has reduced greatly and not stalled since. Hopefully you find this helpful.

Feb 28, 2012 | 1997 Dodge Dakota

1 Answer

Car idles rough in park also runs rough in overdrive


Sometimes a rough idle like that is a fuel filter. As you've already done the plugs and wires the fuel filter would be my next bet.

Mar 15, 2010 | 1993 Buick LeSabre

1 Answer

1995 buick skylark custom ran great now it chugs and acts like a spark plug isnt firing. runs rough and chugs at low speed under 35mph. rough idle.what would cause this?


start by checking the plugs, then see if you got spark at all the plugs, check for vacuum leaks, worn wiring, fuel pressure,

Nov 23, 2009 | 1995 Buick Skylark

3 Answers

I have a 2005 dodge neon sxt, in the morning when I start it up I hear a loud knocking noise from the engine but after about 15 seconds it gets softer but is still there all day when I'm driving around.


It is probably your lifters sticking. Check your engine oil level and if thats fine, then add some oil detergent/additive that says it will "reduce engine knock and free sticky lifters" run with that additive for a couple hundred miles or until the noise gets better. then replce your oil after that without using the additive

Nov 22, 2009 | 2005 Dodge Neon

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