instrumentation keeps blowing fuse

[MarquisGrande]

Hi, Am I in the right place if I have a 95 Grand Marquis? If so, I need some help! The speedometer/warning lights/volt guage keep blowing the fuse. Sometimes the car will go for several weeks without problems, sometimes it blows fuse after fuse. Any ideas on what may be causing this? My mechanic friend thinks it is the guage cluster. Wondering if anyone has experienced this or has ideas. Thanks!!! Dave

[rick99601]

welcome to GMN!

[MarquisGrande]

thanks! 80 Continental Coupe' - - WOW! My 95 Grand Marquis has the Montiqua top on it too!

[87gtVIC]

Welcome and..

I moved ya to the correct place mang.

[rick99601]

Welcome and..

I moved ya to the correct place mang.

maybe someday after ive been around awhile ill get special powers..lol

[Lincolnmania]

yea it might be the visor light wiring.......dont put a bigger fuse in and keep replacing it or you will melt the wiring.......the hot wire to the visor mirror light sometimes rubs thru and grounds out

[MarquisGrande]

Visor light, I appreciate the feedback - I'll check it out!

[MarquisGrande]

Visor mirror lights work fine, rear defroster not working, neither is clock - it flickers on and off every 15 minutes or so. I had the fuse for the guages working Thursday evening, then the fuse blew the next morning when I started it, put about 10 fuses in - blew them all. All part of the fun I guess....

[Dereck]

Hi MarquisGrande

I take it this is fuse 13, yes?

I think it is broken wires to the TCS (Transmission Control Switch) also known as the overdrive switch on the shift lever, strip off the steering column covers and I reckon you will see a little broken white wire at the base of the shift lever.

Regards

Dereck

[MarquisGrande]

Dereck, YES, it is fuse 13! The transmission seems to work fine, is it just the switch for preventing the car from going into overdrive? Now, any ideas on the rear defrost not working? Thanks for the experts who have been there/done that! Dave

[Dereck]

Hi MarquisGrande

Your transmission will work fine, the TCS is a momentary switch to toggle the overdrive on/off, by default the overdrive is on so unless you ever try and switch it off (or the fuse keeps blowing) you may never know there is a problem. I am so confident it is a broken wire to the TCS I will paypal you ten bucks if it isn't.

Your heated backlight my not be working because:-

• Blown fuse (HTD Backlite) under he hood
• Blown fuse 17 under the dash
• Bad heated backlight relay
• Bad LCM
• Bad control switch
• Bad wiring
• Broken defroster grid

Regards

Dereck

[MarquisGrande]

Dereck, Thanks! I will try these remedies and see what happens. Again, I appreciate the response! Cross fingers and toes and hopefully this problem gets fixed!

[86VickyLX]

Hi MarquisGrande

I am so confident it is a broken wire to the TCS I will paypal you ten bucks if it isn't.Regards

Dereck

Wow

[MarquisGrande]

10 bucks is 10 bucks - I pray he's right since I can't wait to get the speedo working again.

[Dereck]

10 bucks is 10 bucks - I pray he's right since I can't wait to get the speedo working again.

Hi MarquisGrande

I am backing up my diagnosis with cold hard cash it is only fair that when it is confirmed I am correct you contribute to my Little Debbie Cake addiction

Here is a Town Car with the same fault

Regards

Dereck