2
votes
1999 Mercury Grand Marquis LS - map sensor, fuel filter, AC, tune up, what could it be
TLDR; Find a new shop to go-to as that one isn't doing anything for you besides taking your money. Also, get a service manual for your car if you want to be able to verify that troubleshooting is ...
- 661
2
votes
Vacuum leak above brake pedal
I had an '86 Town Car (same platform) back in the day. IIRC, the white half ring is the automatic parking brake release. When mine leaked, I removed the vacuum line and plugged it. That took care of ...
- 101
1
vote
2001 Grand Marquis - No Start - High STFT - High RPM
Turns out it was the intake manifold. It is a very common problem for that year that happens around 40 to 60k miles. Usually the car starts though. It was such a huge crack that the car wouldn't even ...
- 41
1
vote
Where is the wiper relay located on a 1995 mercury grand marquis?
95 Grand Marquis Wiper Module Location
- 12.4k
1
vote
Grand Marquis Tune Up
You'll need at least the following:
Spark plug wires
Spark plugs
O2 sensors (2ea pre-cat; 2ea post-cat)
You'll also want to clean the Mass Air Flow (MAF) sensor using MAF cleaner. Be careful with it ...
- 162k
1
vote
Accepted
1990 Grand Marquis won't start
Put a fuel pressure gauge on the Schrader valve. This will tell you for sure you're not getting any fuel pressure. Once verified, there are basically four things to look at:
Check your fuses/relays ...
- 162k
1
vote
1992 Merc Grand Marquis LS Wipers not working
All my diagrams do not show an external relay, but is does show in interval wiper/washer module that could be bad. No clue where it is.
- 8,000
1
vote
1995 mercury grand marquis windshield wipers and blower motor stops working at the same time. They come back on sometime on its own
As with all things, correlation doesn't necessarily imply causation. Though in this instance it seems to be the case. Looking at a wiring diagram the two components don't share a power source unless ...
- 10.7k
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