Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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NHTSA — Engine And Engine Cooling: Exhaust System: Manifold/Header/Muffler/Tail Pipe Problems


really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
44,080 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

1998 Mercury Grand Marquis exhaust system problems

exhaust system problem

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1998 Mercury Grand Marquis Owner Comments

problem #5

Jul 272007

Grand Marquis 6-cyl

  • Automatic transmission
  • 113,000 miles


The contact owns a 1998 Mercury Grand Marquis. After driving 65 mph, the contact noticed fuel leaking from the vehicle. She stated that the intake manifold cracked and she took the vehicle to the Ford dealer. The dealer informed her that there was a recall on her vehicle, but they would not honor it because it was only good for seven years. She took the vehicle to an independent dealer and paid $850 for the repair. The VIN and engine size were unknown. The current and failure mileages were 113,000. Updated 12/12/2007 the consumer stated the intake manifold was a defect that Ford refused to pay for the repairs. The consumer stated would like to be reimbursed for repairs. Updated 12/12/07

- Burlington, CO, USA

problem #4

Jan 102005

Grand Marquis 8-cyl

  • Automatic transmission
  • 107,400 miles
1) normal driving usage; 2) plastic intake manifold cracked, overheating car; 3) part will have to be replaced $590 from Ford Motor Company.

- Bowling Green, KY, USA

problem #3

Nov 182004

Grand Marquis 8-cyl

  • Automatic transmission
  • 0 miles
Faliure has not happened yet but has the potential with all of the other 1998 Mercury Grand Marquis. Plastic intake manifolds are defective from Ford and cause coolant loss. This can cause engine damage and possible engine failure. Recall applying to fleet vehicles should apply to private use vehicles as well. Average repair costs between 700-1000 dollars.

- Park Forest, IL, USA

problem #2

Apr 242004

Grand Marquis

  • miles
1. check engine light came on and remained on constantly. 2. light began to blink for a while then remain on again. The car suddenly killed in a very dangerous situation (while in the middle lane of interstate traffic with no shoulder) 3. problem was determined to be the intake manifold. We were advised that this part breaks often and in fact a recall was issued but only on police cars! the average consumer is left to fend for themselves for this expensive part. A piece of plastic costing upwards of $500 only for the part. Upon replacement we were told by our mechanic that this has been a problem part in these vehicles; and when the part was received it was discovered that Ford had changed the construction to include metal( in the area that usually breaks) in what was previously an all plastic part. We do not have the old part, and I don't suspect that the mechanic kept it either.

- New Orleans, LA, USA

problem #1

Jun 012004

Grand Marquis

  • miles
Problems with intake manifold being cracked. The consumer felt that the same recalls for the Crown Victoria's and thunderbird's should also apply to the Mercury Grand Marquis because they were manufactured by the same company. The intake manifold cracked and was replaced. The consumer requested reimbursement for the monies spent for repair.

- Lebanon Junction, KY, USA

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