1999 Porsche 911 Porsche 911 1999

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1999 Porsche 911 repairs by problem area

Engine (50%)

Transmission and Drivetrain (3%)

Brakes and Traction Control (0%)

Suspension and Steering (9%)

Electrical and Air Conditioning (18%)

Paint, Rust, Leaks, Rattles, and Trim (15%)

Other (6%)

Chart based on 34 repairs.
See TSBs and recalls for the 1999 Porsche 911.

1999 Porsche 911 engine repair cost distribution

$2500+ (6%)

$1000 - $2499 (12%)

$500 - $999 (24%)

$100 - $499 (53%)

< $100 (6%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 17 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

1999 Porsche 911

Engine not specified

48100 mi

C $250
Replaced engine mounts to reduce cabin vibration and improve shifting. 
62000 mi One of the Cam Tower covers was leaking when I sold it. 
21600 mi

US $220
ECU threw P1123. Excess fuel at idle and lean at WOT. Took it to a shop. They were unable to diagnose the root problem and didn't want to charge me to replace working parts. Code cleared and I am monitoring until more symptoms arise. 
26000 mi

US $800
MAF sensor had to be replaced; ECU had to be reprogrammed 
55000 mi

US $1300
Rattling from lower left of engine. Failing water pump bearing. Replaced pump and since they were in the neighborhood, the thermostat and serpentine belt as well. 
83700 mi

C $230
water pump noisy bearings 
137000 mi

US $4000
Cylinder head cracked, IMS Bearing Replaced, Clutch Replaced, Cooling System replaced, Ignition System Replaced 
79000 mi

US $2000
Overheating; water pump was replaced. 
149000 mi

US $650
I replaced the clutch assemble and rear engine seal myself and it works perfect. OEM Sachs parts and OEM rear Crank Seal, now a pro at 996 tranny removal and replacement. 

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1999 Porsche 911 2-door

6-cylinder manual 2WD

44000 mi

US $500
Coolant expansion tank crack which was explained to be a typical problem for this car, but not a major repair 
53000 mi

US $260
Had a leaking coolant tank and finally decided to replace it and the coolant cap with new parts. 
60000 mi

US $300
Check valve for air injection system failed. Typical problem on 99's 
54000 mi

US $200
Air Oil Separator Replaced 
61000 mi

US $100
Repair serpentine belt pulley 
69300 mi

£200
Coolant reservoir developed a slow leak & was replaced by the owner. 
71000 mi

£300
1 coil pack failed. Replaced all 6 
82000 mi

£950
Radiator leak due to corrosion. 

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See TrueDelta's information for all Porsche models.

1999 Porsche 911 Engine Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 1999 Porsche 911 problems occur, check out our car reliability stats.