Need Help! Car Turns off when in park.

Asked by Mar 31, 2014 at 01:18 AM about the 1988 Mercury Grand Marquis

Question type: Maintenance & Repair

I own a 1988 Grand Marquis and it
has recently started turning off. It only
turns off after i have driven it and i
reach my Destination and put it in
Park or in Reverse some times. Also
the lights dim so i believe that it may
be the Alternator, and also the engine
some times shakes when i accelerate
past 25 and when it shifts gears. I
hope someone is able to help me out,
i dont have that much money to
spend on repairs.

2 Answers

21,325

check if your shift linkage is rubbing through wiring and shorting it out when you move the shifter

25,565

Try cleaning the throttle body and perhaps the IAC (Idle Air Control) solenoid. They get gooped up over time and can't compensate for differences in engine load (or no load) quickly. As for the lights dimming - If the Alternator wasn't working, your lights would always be dim and eventually, you couldn't start the car. Now for the shaking you describe: sounds like an engine miss. Sounds like your car may not have had any maintenance done in a long time. Typically, the spark plug wires deteriorate and cause misfires by allowing spark to jump to ground rather than through the spark plugs.

Best Answer Mark helpful

Your Answer

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,730
  • #2
    kbro
    Reputation
    2,130
  • #3
    Js08016
    Reputation
    1,870
View All

Related Models For Sale

Used Ford Crown Victoria
5 Great Deals out of 1,185 listings starting at $2,900
Used Lincoln Town Car
35 Great Deals out of 1,743 listings starting at $1,500
Used Dodge Charger
423 Great Deals out of 27,492 listings starting at $2,495
Used Ford F-150
2,281 Great Deals out of 181,623 listings starting at $1,000
Used Chevrolet Caprice
201 listings starting at $10,595
Used Ford Mustang
715 Great Deals out of 38,357 listings starting at $895
Used Honda Accord
1,045 Great Deals out of 60,748 listings starting at $999
Used Ford Taurus
253 Great Deals out of 16,489 listings starting at $1,850
Used Lincoln Continental
17 Great Deals out of 4,303 listings starting at $35,999
Used Cadillac DeVille
1,624 listings starting at $1,995

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
25 listings starting at $5,450
2010 Mercury Grand Marquis For Sale
3 Great Deals out of 90 listings starting at $3,490
2009 Mercury Grand Marquis For Sale
4 Great Deals out of 83 listings starting at $2,899
2008 Mercury Grand Marquis For Sale
9 Great Deals out of 160 listings starting at $2,995
2007 Mercury Grand Marquis For Sale
8 Great Deals out of 111 listings starting at $1,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.