You may find another component is bad. You need to sort of pull and wiggle the boots at the same time to get them off can't fit a boot tool back there. Grab the spark plug boot connected to the plug and twist it back and forth while at the same time pulling it off. Upgrading to a premium long-life platinum or iridium spark plug will cost a little more but will serve to benefit the vehicle owner in the long run because you do not have to change spark plug in 96 Mercury Grand Marquis as often. Mar 30, 2010 Check you've reinstalled the wires to the correct cylinders - if you've got this wrong, then you'll have problems. Spark plugs for Mercury Grand Marquis need to be just as reliable so they always fire at the tip of their electrodes. This is a free advice.
This is a standard system on the 2000 and newer 4. Hope this helps, Sherwin Dec 29, 2009. First thing is to go purchase a set of Motorcraft Spark Plugs for your Mercury, a feeler gauge, and anti-seeeze compound in a tube. Pull the headrest up, slide blade as far down as possible, push down headrest with blade and then pull up. This is a common symptom of worn valve seals or possibly theguides. One is to check that the fuel pump is functioning and supplying the correct amount of pressure. Only grab the boot and do not pull on the plug wire itself or you will break the wire.
The plugs are pretty far into the engine so it helps to have an extension for your socket - usually a 3 inch, and you also need a 6 inch. If it happens again, check the injector wiring, look for bad connections or corrosion at connectors. Install the overlay wiring harness by attaching the large ring terminal to the battery terminal of the starter relay. Then you will also need air to clean out the wells before you remove the plugs. If that security prove out light remains blinking, the key sense wire may be broken as well. With all the Computerized stuff on 2000 model year and later automobiles, it's best to pay a price for a complete tune-up.
Off hand, I'm afraid I don't know your cylinder order however - sorry, you'll have to check a manual for that one unless someone else on here knows it off the top of their head? They said it is a rare thing to happen and will have to order a new one since they are not kept in stock. Hope this helps Jul 11, 2012 For this problem, i suggest you to go through this help links. Push the plug wire back on. If the compressor is frozen, they do make brackets with idler pulleys to replace it, so the serpentine belt will still work. It's something that you can do without removing these parts to replace them and see which one solves the no spark-no start problem and in this tutorial I'll show you how.
But it has a happy ending. Maybe your pcm is, or was, at fault. Good chance it is plugged. So my recommendation is to test for spark right off the bat to see if spark is missing from the mix air, fuel and spark. Swap the fuel filter, located high up on the firewall in engine bay.
About 100,000 miles ago it had a brand new engine put in it, cooling intake faliure of some sort. You can trust those who specialize in auto repair work to make a change spark plug in 96 Mercury Grand Marquis job one that is done accurately, completely and quickly. There are very few people who have such knowledge and thus the right way to change spark plug in 96 Mercury Grand Marquis is through the use of a trained, professional and reputable auto mechanic. Manly in acceleration or hill climbing. You may have to unplug the main harness connections sometimes the corrosion happens inside the plug pins will look green or rusted. Grab the spark plug boot connected to the plug and twist it back and forth while at the… on each side of intake manifold along side the fuel rail there is a 7mm bolt holding a black round circular boot these are the coil packs there are 4 on each side remove bolt and pull up to remove coil pack careful to not damage rubber boot the spark plug is located down inside the hole be sure to have extensions spark plug socket and ive found a swivel adapter handy also if plugs… Why would you want to?? So, that may very well be the issue. In one of those years, Ford eliminated the high tension wires, and gave the spark plugs their own coils.
Repeat 1-5 for the other 7 plugs. Its not an option its standard and you can read about the system in the owners manual. This is what sends power to your engine block to get your vehicle started. Problem was worse than I had imagined. You can also buy a plug wire remover which is available at any parts store.
All cars will require a different 96 Mercury Grand Marquis tune up depending on their make, year and model. If you change the plugs, it's best to replace the wires also. Tune ups will help prevent damage, both minimal and catastrophic, from happening to your car. In fact, there are many auto owners who claim their vehicles have run for years with a simple 1996 Mercury Grand Marquis tune up and maintenance. That is if you didn't keep cranking on it, also change the oil, If you kept cranking, you probably washed down the cylinder walls of all remaining oil loosing all or most of it's compression.