98 Grand Marquis

http://Toyota.autoboardz.com/98-Grand-Marquis-Mis-Firing-ftopict226444.html (98 Grand Marquis Mis Firing)
My 98 Grand Marquis is miss- firing. I got a check engine light. I will bring the car in for service tommorow, but I am told that this is an expensive ordeal The spark plug colis fail and they are $60/each The spark plugs have alreay been replaced. nyone else have a similar probelm? The car has 12..
« REPLACE THEM ALL!!! I did mine and it was the best thing I did to the car, it now runs like new. You can try replacing the boots only along with the plugs and see if it helps. (don't forget the lube) »
« Replacing them all sounds like the right idea. I don't want to keep taking time off from work and going to my mechanic to replace these things one at a time. Anyway, may I ask roughly what the repla.. »
« coils can be bought aftermarket for$35. on a side note, if someone put oil in the motor and missed the hole in the valve cover, the oil will fill up the spark plug holes in the head, causing the coi.. »
« Did they replace the plug wires? Wires can be a major cause of mis-fire on 4.6's from the 90's. I got about 6 yrs/40k mi. on my 4.6 before I had to replace the wires. Cheers, Puddin' »

http://Toyota.autoboardz.com/98-Grand-Marquis-Alternator-light-ftopict226479.html (98 Grand Marquis Alternator light)
My alternator light comes on occassionally. I replaced the battery because it was the original. Not bad for a 9 year old battery. The light still comes on intermittently. Anyone know what it could be? Is it the obvious bad alternator or could it be someting else less expensive (wishfull thinking)
« If the alternator is also that old, it's probably on the way out, although it could be corroded/loose connections or worn/loose belt (tensioner). Don't trust the idiot light; get a cigar lighter p.. »
« Better idea... take the 15 bucks and put it towards a decent DMM. Once you have it in hand, use the instruction book to learn how to perform voltage drop testing.... Having a DMM and KNOWING HOW T.. »
« The alternator on your GM is pretty durable, and very repairable. The occasional battery light is because the brushes are likely near the end of their life though. Get a brush holder and brush kit.. »
« Thear does have a volt meter. The volts read okay. An ammeter woud have been better . »

http://Toyota.autoboardz.com/Pulsating-brakes-98-Grand-Marquis-ftopict226428.html (Pulsating brakes 98 Grand Marquis)
Not sure why, but I notice a lot of vibration in the front passesnger side and pulsation when I brake. The rotors have never been turned or replaced, 110,000 miles. If I replace them, will that take care of the problem?
« yes »
« your abs is mal fuctioning. the little eye that reads the rotor speed is either dirty or needs to be replaced. changing the rotor won't help in this situation »
« If the problem started as slight vibe and steadily gets worse, rotors! DO NOT TURN them... not worth the hassle. Change the pads while you are at it... even if plenty meat left. DO NOT buy cheap .. »
« This car doesn't have ABS. Not sure why, but it was the 98 Grand Marquis GS and didn't come with it. »

http://Toyota.autoboardz.com/98-Grand-Marquis-Heater-Core-Problem-ftopict251521.html (98 Grand Marquis Heater Core Problem)
I need to have my heater core replaced in my 98 Gran Marquis. It is leaking. Anyone know how many hours labor it should take? Looks like the dash needs to come out.

http://Toyota.autoboardz.com/98-Grand-Marquis-rattle-exhaust-system-ftopict226478.html (98 Grand Marquis rattle in exhaust system)
My 98 Grand Marquis makes a rattleing noise when the engine runs. It would seem that there is something loose inside the muffler. Anyone know what it could be? It is not a rattle due to going over bumps. It ocurs due to pressure in the exhaust system.
« Some of the problems.... Most common is a rusted heatshield or band clamp... the only way is to look and listen..... Also possible.... broken catalyst monolith orruted baffle in the muffler.... ag.. »
« The broken catalyst monlith is a god bet becase I get a check engine lijght that indicates insuficient catalyst. »

http://Toyota.autoboardz.com/98-Grand-Marquis-Stalls-idle-speeds-ftopict226430.html (98 Grand Marquis Stalls at idle speeds)
This car is giving me a lot of trouble. Stalls at idle speeds, stalls when I take my foot off the gas on the highway. I am getting it fixed Friday. Can't do it till then because I can't get the time off to do it. This is getting to be the most dangerous vehicle that I have ever owned. Suspension p..
« May be an idle air motor causing the stumbing. How is it dangerous? If you sit in the thing for awhile, and you go somewhere, then you're okay. Not sure why the suspension failed, but if it is fix.. »
« Obviously, if it stalls while on the highway and his steering gets real stiff, that is a safety problem. Same with left turns, etc.,etc. It does seem that all the tie rod ends go out on these Fords .. »
« The engine stalls at idle so I have to rev it up a little and puu it in gear while my left foot is on the brake and my right foot is on the gas, otherwise it stalls. I realize it may be the idle mot.. »
« I agree, every other manufacturer produces vehicles which -never fail- or have components which wear out after 7 years on the road. It's only Ford. »

http://Toyota.autoboardz.com/Help-98-Grand-Marquis-Losing-power-Highway-speed-ftopict226398.html (Help: 98 Grand Marquis Losing power at Highway speed)
here's some input... teach your brother to type and use newsgroups then let him borrow your computer and post ALL the information/symptoms. there has to be more to it. Those two problems are not usually associated... the flashers would typically be affected by too low voltage and the car wouldnt..

http://Toyota.autoboardz.com/98-Grand-Marquis-surges-misses-high-speeds-ftopict226429.html (98 Grand Marquis surges (misses) at high speeds)
My 98 Grand Marquis is surging at highway speeds. Seems as though this is a common problem with this car. My brpother has 99 CV and he had to replace spark plug coils. Could there be anything else causing this? By the way, my brother's 99 CV needs a new ignition switch because his shorted out. I'm..
« I have a 2000 Crown Vic and after many miles of missing and two trips to the dealer (under warranty) I decided I had enough of this B.S and decided to replace ALL 8 coils and plugs. It was the best.. »
« It's normally the boots that fail, the coils are usually ok. When a coil fails it is usually a dead miss. I don't have the source or part number handy, but replacement boots are available. One sho.. »
« Is replacing the boots difficult? Seems like you have to remove the fuel rail. »

http://Toyota.autoboardz.com/Trade-97-Grand-Prix-service-manual-98-Grand-Marquis-ftopict226432.html (Trade '97 Grand Prix service manual for '98 Grand Marquis)
Does anyone have an electronic copy of a '98 Grand Marquis service manual. I have a PDF of a '97 Grand Prix service manual and many computer related technical manuals. Thanks. - Jim