Manifold/header/muffler/tail Pipe problems of the 1999 Mercury Grand Marquis

The contact owns a 1999 Mercury Grand Marquis. The contact stated that the vehicle had a leaking intake manifold. The vehicle was taken to an independent mechanic and diagnosed that the intake manifold needed to be replaced. The vehicle was not repaired. The dealer and manufacturer were made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was approximately 120,000.

On the 1999 Mercury Grand Marquis LS 4. 6 l v8 the original plastic intake manifold cracked and busted wide open causing all the coolant / antifreeze to pour out. From what I gather there was a recall on this years ago and they made a different intake manifold which was aluminum for the part that the thermostat goes into and the rest of it was plastic. If this isn't caught in time and all the fluid leaks out it will completely destroying your engine also. Mine cracked while it was in park just running.

The contact owns a 1999 Mercury Grand Marquis. While the vehicle was parked with the engine running, the contact shifted into reverse and noticed steam coming from the hood. The vehicle was then shifted back into park and turned off the engine. Upon opening the hood, the contact noticed that a part of the manifold was missing the thermostat. The contact was unsure of any warning indicators illuminating. The contact went to bill macdonald Ford (1200 s carney dr, st clair, mi 48079, (810) 329-6601) and was informed there were no recalls. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the issue. The failure mileage was approximately 135,000.

Plastic intake manifold failed, antifreeze leaking from around thermostat due to this failure and leaking into coil packs and causing major misfire in motor. Happened suddenly, no indication of leak prior to this failure. Was driving when this happened and had to call for help to get vehicle back home, and now can't drive it . Cost to fix is expensive, and the car ran great until this happened. Sounded like I has thrown a rod, popping louder on exceleration, so I immediately parked it and turned off the motor.

Driving on the hwy and the car started to overheat with hot steam shooting out from the engine and it also had a strong coolant smell. The car could not be driven until l it had $1,500 in repairs for a known, leaking plastic manifold issue. This failed part cracks and leaks into the hot engine area. And, Ford had redesigned the failed part. Additionally, Ford had once offered free fixes for a few months for police cars ans taxi cabs with the same engines under a class action law suit but didn't tell the owners about. Thousands of consumers were ripped off because Ford should have fixed this issue under the class action recall. But they didn't bother notify anyone about the three month recall window. In checking the NHTSA records, there are thousands of us with the same reported problem. Please take some corrective action for us.

The contact owns a 1999 Mercury Grand Marquis. The contact stated that water was leaking from under the vehicle. The vehicle was taken to an independent mechanic for diagnosis where the contact was advised that the intake manifold would have to be replaced because it was fractured. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 114,000.

Plastic intake manifold on 4. 6 liter engine found to be cracked and leaking coolant. The loss of coolant results in the vehicle becoming disabled and/or unsafe to drive. Leaking coolant is also toxic to children and animals, as they are more likely to be in contact with coolant on the ground or garage floor. This defective part (plastic intake manifold) was identified by Ford motor company as defective and quietly settled in a class action lawsuit. Replacement parts have been redesigned. However, Ford did not contact customers with this model car to notify them of the defective part or to offer resolution. Earlier models of this engine (and all other engines) used a metal intake manifold. These were not problematic. Intake manifolds are not a moving part of the vehicle engine, and are not subject to ware. The plastic material used in the problem manifolds are not able to withstand the normal temperature fluctuations of a vehicle engine and are therefore prone to failure. Ford has been contacted in an attempt to resolve this issue, but the company has declined to offer any resolution whatsoever.

The contact owns a 1999 Mercury Grand Marquis. The contact stated that the vehicle would stall sporadically and without warning. A local mechanic diagnosed that the intake manifold would need to be replaced. The dealer was contacted, but denied any assistance with repairs to the defect. The manufacturer was not made aware of the failure and the vehicle was not repaired. The failure mileage was 90,200 and the current mileage was 91,000.

Vehicle would shake violently at any speed from 45-80mph. Took to a mechanic said the front end needed to be replaced. $800. 00 later it still did it, then took back said the tires needed to be replaced although we had 80,000 mile tires, and only had 35,000 miles put on them. Replaced the tires for $600. 00. Still shook, took to a different mechanic said it was the transmission failing. During scheduled maintenance found cracked intake manifold, antifreeze and oil in spark plugs, cleaned out changed spark plugs, ran fine until the manifold leaked more coolant into the spark plugs and now we are at square one. Researched online found a bunch of places saying it was recalled, when I called the dealership they said no recalls. Price of replacing the part was $615. 00 if I had one alternator, or $650. 00 if I had another.

Fatigue cracking of the coolant crossover passage of the all nylon-composite intake manifold on our 1999 Mercury Grand Marquis. (VIN # [xxx]). Component has failed, resulting in replacement, costing $888. . Read more...

Cracked the air intake on my 1999 Mercury Grand Marquise. It was made out of cheap plactic. I had to step on the throttle to get out of the way, and my car started steaming. Come to find out, the intake manifold cracked. It's only $300 for the part, not including labor.

We never received notification of the manifold defect and recently discovered that there was a recall. Our car is a 1999 Grand Marquis with cracked manifold intake. We took it to the local dealer and they said that they cannot do any warranty adjustments since the deadline was exhausted. We called summer of 2009 to let them be aware of this problem. Though they were nice, they were still firm on denying us repair or adjustments under the law suit and recall. Now what do we do since we never received notification nor were we aware of any problem with the car?.

The contact owns a 1999 Mercury Grand Marquis. He could not accelerate past 30-35 mph. The vehicle was taken to an authorized dealer for diagnostic testing. The technician stated that the failure was because of a plastic intake manifold. The vehicle was repaired with the replacements of a metal intake manifold and spark plugs. The following day after the service repair, he experienced rough idling while starting the engine cold. The authorized dealer was notified of the failure, but no remedy was available. The failure mileage was 54,300. The current mileage was unavailable.

Cracked intake manifold on a 1999 Mercury Grand Marquis with only 52000 miles on it. Cost $1200 to repair. Was not notified of recall. 52000 miles is only about 4. 3 years of actual use. It is unfair that low mileage drivers should be punished for conserving energy.

The contact owns a 1999 Mercury Grand Marquis. While driving at an unknown speed, the vehicle hesitated, stalled, and the check engine light illuminated on the instrument panel. The vehicle also began to loose coolant. The vehicle was taken to a dealer and they discovered that the intake manifold was cracked. There was no recall on the intake manifold. The current mileage was 88,000 and failure mileage was 87,500.

I noticed coolant leaking from somewhere in the engine compartment, but initially had trouble finding where the leak was coming from. I finally discovered that the intake manifold was cracked at the plastic thermostat housing.

The contact owns a 1999 Mercury Grand Marquis. While driving 45 mph, the temperature gauge on the vehicle began to increase. The contact pulled over to allow the vehicle to cool before driving home. Once she arrived home, she noticed smoke rising from the front end of the vehicle. This same failure has previously occurred twice. The vehicle was taken to a mechanic and he stated that the intake manifold needed to be changed. The current and failure mileages were 123,052.

Had spark plugs replaced. One plug exploded. Was told by Ford dealership service mechanic the intake manifold was cracked. Car was running fine before plugs were replaced. Intake manifold is plastic. (this was an issue with the 1997 model. ) did the repairman crack the manifold? why is replacement part still plastic? Ford/Mercury price for part is $598. 06; napa is $281. 00.

: the contact stated while driving 40 mph, the engine hesitated and idled badly at a stop. The contact replaced the fuel filter, but problem continued. When taken to an independent service dealer, the diagnostics showed the manifold was cracked. The manufacturer was notified. The consumer stated the vehicle would sjip and jump. Updated 12/18/06.

Cracking plastic intake manifold on Mercury v-8 car over heats due to water/coolant leaking looking into getting fixed.

Complete cracking of plastic intake manifold causing completer loss of coolant and $1400 repair with the new replacement metal manifold.

Problem: the car was diagnosed with a leaking head gasket & defective manifold. Cost to repair $2504. 80 (I paid it) I brought the car in on 11/17/03 and got it back 11/20/03. I was told the repair was complete. As I drove it off the lot the car shimmied and stalled. The car was brought right back and they still are working on it as of 11/21/03 9am. . Read more...

I had to fix the leak 3 times. Finally, my mechanic noticed the crack on the intake manifold. It is made of hard plastic! what in the world anyone would design such part in plastic? how can such material sustain extreme heat for long periods of time. I purchased new one and it is plastic again with a little improvement. But it is mostly plastic again. I believe this is service scam. You make parts to only last 4 years and make money from selling auto parts. The dealership person sold me the parts stated that he had sold 6 of them last week alone and he has it in stock all the time. You know the problem but failed to inform consumers. I want a satisfactory answer before buying another american car.

Intake manifold blew out, sending fuel into the engine. The intake manifold was replaced.