Question about 2005 Lincoln LS

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I am told I need to replace my shift solenoid, V8 LS 2005 I just had 6 coils replaced, sparks and wires. what does this mean, and how urgent is it.

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Just want to remind you Lincolns have a 6 Year, 70,000mile Warranty on the Engine and Drivetrain. Your shift part is a Drivetrain component.

Sometimes the "Slang" used in describing a problem is too vague. The shift solenoid can refer to the part that locks the gearshift until you put your foot on the brakepedal to start your vehicle. It is important but less important than the "shift solenoid" that makes the correct gear work inside the Transmission.

The first part is an "Interlock" solenoid and the second part is what times the gear changes. I do not know why you needed the coils, sparks and wires, but a bad solenoid will give you bumps in the Drivetrain similar to sparkplugs missing out.

The onboard computer of your car would generate a Code and identify the cylinder that is misfiring. It is very possible to replace just the 1 bad component since most of the new engines can go 100,000 miles without new plugs.

Posted on Aug 31, 2010

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1 Answer

My Lincoln ls shifts very hard from 2nd gear to 3rd gear . what is the problem?


Hi David. I am a big fan of starting with the cheap and simple fixes first. Some people find that a low transmission fluid level caused the problem you described and when they simply added a little transmission fluid, they solved the problem. Like your car oil, transmission oil can get dirty, only with transmission fluid, dirt can clog the filter and the control body of the tranny system. About 70 % of all the auto tranny problems are solved by changing the transmission fluid.

However, on a Lincoln site, one person stated:
"I had my tranny fluid changed which made it shift even harder. the mechanic told me to take it to Ford and have them reset the computer. So I pulled the battery cable off for a minute and put it back on to reset the computer. Now the car shifts like it should... Try this first, its free".

On the Lincoln forum, Tom stated, " the Transmission Pressure Control Solenoid Pack needs to be replaced. This seems to be a common issue on the transmission you have. There are 3 pressure control solenoids & 4 shift solenoids in one plastic part ,made by Bosch. You remove the trans pan,the gasket is reuseable silicone You remove the filter, You remove approx 7 -- T30 bolts, holding the solenoid pack & one 10mm electrical connector bolt. HPN-9L2Z7G391A about $400 for the part and add on labor. Add in some new Mercon V and filter kit and your good to go. "
Good luck.

Good

Feb 26, 2015 | 2005 Lincoln LS V8

1 Answer

My 2003 Lincnoln Ls has tranny problems! It's


No reason to replace a PCM behind the glove box

I have the same car, a 2004 V8

I replaced the One & only solenoid pressure control pack on mine

Having owned a trans shop in New Jersey years ago, I find your remarks
rather harsh

If they rebuilt the unit correctly , it should be fine & it should not have failed in 8 years,
if you changed the fluid every 30,000 miles, then what happened & why?

What were you told & why are you not back there?

Were updates done on the trans to correct the original problem
or any mention of a dealer flashing updates into the pcm?

Sep 24, 2011 | 2003 Lincoln LS

1 Answer

2005 lincoln ls transmission is shifting hard from 1st to 2nd gear


You replace the Transmission Pressure Control Solenoid Pack

There are 3 pressure control solenoids & 4 shift solenoids in one
plastic part ,made by Bosch

You remove the trans pan,the gasket is reuseable silicone
You remove the filter
You remove approx 7 -- T30 bolts, holding the solenoid pack
& one 10mm electrical connector bolt

HPN-9L2Z7G391A $515.30 / $ 332.20 cost -- for part

Aug 02, 2011 | 2005 Lincoln LS

1 Answer

We have a 2005 Lincoln Lse with aV8 engine all coil packs have been replaced but they still continue to go bad .the car runs good the thorttle body also has been replaced and still are having coil...


You never needed the replace all the coils

I suspect that was at a dealer,waste of time
& your money

The coils fail at a rate of 1 a year,sometimes 2

They cost $59.00 plus tax & take no more than
30 min to install if you have no experience

They have been doing that since 1998 on ALL
fords products with COP ignition coils & now
they are on most all makes today & fail but not like
a ford

Very few people like or work on fords & never solve
LS issue

I have a 2004 V8 & a magic touch I guess

You only go to a dealer to buy a car & for warrantee
work. I learned that at age 19 some 47 years ago

Replace the front 2 O2 Sensors at 100,000 miles
before you get a Wrench MIL Lamp

They have to be ordered from NAPA &
the wires are 5" longer than OEM but still
OEM NGK/NGT

Spray the MAF Sensor with CRC MAF Cleaner

Only use NGK Spark plugs
They were the OEM Mfg & your V8 takes a special
center electrode 6mm I believe

FR5AP-11E

NGK 6569 avail at NAPA

Have to use premium gas or you
get a knock even with the dealer PCM
Flash Update

Jun 12, 2011 | 2005 Lincoln LS

1 Answer

2005 Lincoln LS V8. When cruising on highway and/or when cruising and I let up a little on gas the car will buck a little almost like it is shutting off for a split second. I am pretty sure it does it at...


EGR Valve-is where I would start.
Remove and plug the vacuum hoses to it,
road test,problem solved,replaced EGR

After that, expect to loose 1 or 2 COP Ignition Coils a year
Any MIL Lamp on dash,you retrieve the code and go from there
Any PO301 thru PO308 if you have a V8 is a coil misfire
very,very common on the LS and most fords back to 1998
with coil-on-plug

Next clean the throttle plate and MAF Sensor
CRC Throttle Body Cleaner & CRC MAF Sensor Cleaner

Next TPS-throttle position sensor gets tested

I hope you have changed the spark plugs every
three years,regardless of milage,they are a special
NGK Plug just for the LS

Also you have to use premium fuel,sorry in an LS

When you get a coil misfire, the PCM starts to cut
injector timing and you get just what you discribed

Dec 13, 2010 | 2005 Lincoln LS

4 Answers

My 2005 lincoln Ls check engine light and wrench light comes on. the first time - a ford tech. changed a spark plug& wire. the second time a different spark plug & wire. third time another spark...


I have the same problem. My Lincoln Ls wrench light comes on and it quits. All spark plugs, all coils and the throttle body has been replaced. I think the LS model is a lemon! Any information or suggestions will be appreciated.
Thanks, Betty

Mar 12, 2010 | 2005 Lincoln LS

2 Answers

Lincoln LS 2003


my etc light came on and i took to the lincoln dealer it was my fuel system and it had to be replaced for the tune of 800 dollars. after that it ran fine for about a month then i hit a hump then it went into etc mode again. i then took it back to lincoln they did not see a code or that it even went into etc mode because i cut the car off and turned it back on it ran fine but once you cut it off it resets itself it did this about 10 more times and never came back on again knock on woods no problems but it started missing and the check engine light came on it was a misfire in cylinder 4 and it replaced the spark plug myself and it has ran find ever since. I was told anytime the etc light comes on it due to fuel or transmission

Jun 25, 2008 | 2003 Lincoln LS

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