2016 Chevrolet Tahoe
Problems, recalls and owner-reported issues
Service brakes is the leading concern among 257 owner complaints filed for this model year. This is the 14th highest complaint count among 26 Tahoe model years with reports.
Of the 2016 reports, 17 involved a crash and 1 involved a fire. 13 people were injured.
What owners report most often
Recalls and investigations
Power train, transfer case (4-wheel drive)Do not drive until repairedMay 7, 2026
General Motors, LLC (GM) is recalling certain 2026 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, and GMC Sierra 1500, Yukon, and Yukon XL vehicles with four-wheel (4WD) or all-wheel drive (AWD), and certain 2015-2020 Suburban, Escalade, Escalade ESV, Yukon, Yukon XL, and Tahoe vehicles. A component missing from the drivetrain transfer case may cause the front and/or rear wheels to lock up without warning to the driver.
Front or rear wheel lockup increases the risk of a crash.
Owners are advised not to drive their vehicle until the remedy is completed. Dealers will inspect and, if necessary, replace the transfer case assembly, free of charge. Owner notification letters were mailed May 18, 2026. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-333-4223. GM's number for this recall is N262557620. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on May 7, 2026.
Campaign 26V289000 on NHTSA.gov
Seat belts, frontApr 8, 2021
General Motors, LLC (GM) is recalling certain 2014-2016 Chevrolet Silverado 1500, 2015-2016 Chevrolet Tahoe, and 2014-2015 GMC Sierra 1500 vehicles that may have received an incorrect replacement tensioner cable assembly as part of a previous recall remedy or a subsequent repair. The flexible steel cable connecting the driver's seat belt to the outboard side of the seat may be repeatedly bent over the seat side shield as the driver enters and exits the vehicle causing the cable to fatigue and separate.
A broken pretensioner cable reduces the effectiveness of the driver's seat belt, increasing the risk of injury.
GM will notify owners, and dealers will replace the driver seat belt lap pretensioner, free of charge. The recall began on May 5, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020, and GMC customer service at 1-800-462-8782. GM's number for this recall is N212330040.
Campaign 21V245000 on NHTSA.gov
Service brakes, hydraulic, antilock/traction control/electronic limited slip, wheel speed sensor/tone ringOct 24, 2019
General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.
Unintended activation of the driveline-protection system will cause unintended braking on the wheel on the opposite side of the failed sensor, causing the vehicle to pull to one side unexpectedly, increasing the risk of a crash.
GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.
Campaign 19V761000 on NHTSA.gov
Service brakes, hydraulic, power assist, vacuumSep 6, 2019
General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.
As the vacuum level drops, the brake assist decreases, increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash.
GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began October 8, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192268490.
Campaign 19V645000 on NHTSA.gov
Seat belts, frontMay 3, 2018
General Motors LLC (GM) is recalling certain 2015-2016 Chevrolet Silverado 1500 and Tahoe Police Pursuit and Special-Service vehicles. The flexible steel cable connecting the driver's seat belt to the outboard side of the seat may be repeatedly bent over the seat side shield as the driver enters and exits the vehicle causing the cable to fatigue and separate.
If the pretensioner cable becomes fatigued or breaks, the driver may not be properly restrained in the event of a crash, increasing their risk of injury.
GM will notify owners, and dealers will replace the pretensioner cable and seat side-shield, free of charge. The recall began June 19, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 18156.
Campaign 18V291000 on NHTSA.gov
Air bags, frontalJul 10, 2017
General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.
A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.
GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on August 4, 2017. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 17287.
Campaign 17V437000 on NHTSA.gov
Air bags, frontalSep 8, 2016
General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.
A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.
GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on October 13, 2016. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 16007.
Campaign 16V651000 on NHTSA.gov
Suspension, front, control armDo not drive until repairedApr 28, 2016
General Motors LLC (GM) is recalling certain model year 2016-2017 Chevrolet Silverado 1500 and 2016 Cadillac Escalade, Cadillac Escalade ESV, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, GMC Yukon and GMC Yukon XL vehicles. The front upper control arms may have inadequate welds near the control arm bushing.
Inadequate welds may allow the control arm to separate from the bushing, compromising steering and increasing the risk of a crash.
GM will notify owners, and dealers will replace the left and right front upper control arms and realign the vehicle, free of charge. The recall began on May 18, 2016. Until the repairs have been made, owners are advised not to drive their vehicles. Owners may contact Chevrolet customer service at 1-800-222-1020, Cadillac customer service at 1-800-458-8006, or GMC customer service at 1-800-462-8782. GM's number for this recall is 42190.
Campaign 16V256000 on NHTSA.gov
Representative owner complaints
257 reports, newest first.
Service brakes, Jun 13, 2019
AT SLOW SPEEDS BRAKE HITS THE BOTTOM AND VEHICLE DOESN'T STOP. DEALER ADMITS BRAKE VACUUM FAILURE.
Service brakes, Jun 4, 2019
LOST POWER TO BRAKES - DIFFICULTY STOPPING AT LOW SPEEDS - NEARLY HIT CAR IN FRONT OF ME - CAR FELT LIKE IT WOULD NOT STOP
Service brakes, May 13, 2019, crash
HI IM WRITING AGAIN TO REPORT ON 2016 CHEVY TAHOE VACUMM ASST FAILURE / DEFECTIVE PARTS THE TAHOE HAD AT THE TIME OF THE CRASH 40,475! I HAD JUST PICKED UP MY VEHICLE FROM SERVICE AT JACK SCHMITT CHEVROLET FOR UNRELATED ISSUE I WAS 2 MILES FROM THE DEALERSHIP HEADING SOUTHBOUND ON GREEN MOUNT RD. APPROACHING A STOP LIGHT I WAS SLOWING DOWN COMING UP TO THE LIGHT WHEN SPIDER FELL BETWEEN MY LEGS SO I ATTEMPTED TO KILL IT AT THE SAME TIME THE COLLISION ALERT ACTIVATED AND I IMMEDIATELY HIT THE BRAKES BUT THE PEDAL WAS HARD AND THE SUV WAS NOT STOPPING LIKE I THOUGHT IT SHOULD SO I STARTED MAKING EVASIVE ACTION TO AVOID REAR ENDING THE CAR AT THE LIGHT. I PULLED THE STEERING WHEEL ALL THE WAY TO THE RIGHT BUT THE SUV KEPT MOVING NOT SLOWING AS IT SHOULD HAVE AND HIT REAR PASSENGER SIDE BACK OH THE CAR IN FRONT OF ME CAUSING NOMINAL DAMAGE TO BOTH VEHICLES ABOUT 12,000 FOR THE TAHOE WHICH I GOT REPAIRED SO I CHALK IT UP AS MY FAULT BUT I KEPT NOTICING THE SUV ON SEVERAL OCCASIONS SEEMED LIKE IT WAS STILL MOVING WHEN IT SHOULD STOPPED. MONTHS PASSED AND I WAS LOOKING UP POSSIBLE CAUSES AND ON A WEB SITE A COMPLAINT MADE BY SOMEBODY WHO'S TAHOE WAS DOING THE SAME THING THAT'S WHEN I FILED A CLAIM WITH CHEVY/GM SOMEWHERE AROUND JUNE 20 2018 AND SPOKE MONIQUE HILL WHO TOOK MY REPORT AND MONTHS LATER DENIED MY CLAIM AND IN THE SAME LETTER SAID GET YOUR VACUM ASST SERVICED AND I THOUGHT THAT WAS STRANGE! ANYWAY I DID GET IT SERVICED AT JACK SCHMITT CHEVY IN OFALLON IL 6186252800 AND WAS TOLD THE VACUUM ASSIST WAS DEFECTIVE AND THEY HAD TO ORDER THE PARTS TO REPAIR ALSO THEY HAD TO GIVE ME A CAR RENTAL BECAUSE THE 2016 CHEVY TAHOE WAS UNSAFE FOR THE ROAD AND THAT WOULD BE HELD LIABLE IF THEY LET ME TAKE IT AND I'M PISSED AT THAT POINT ALL THIS TIME I COULD HAVE BEEN KILLED! I WAS HURT AND HURT FOR ABOUT A YEAR SURE BACK AND NECK AND THEY JUST DENIED DENIED DENIED! PLEASE HELP
Service brakes, May 6, 2019
BRAKE FAILURE/ HARD BRAKE REQUIRED TO STOP VEHICLE. VACUUM PUMP FAILED.
Exterior lighting, Apr 12, 2019
INTERIOR LIGHTS ON DASHBOARD TURN OFF THEN THEY FLICKER/PULSATE, HEADLIGHTS AND EXTERIOR BREAK LIGHTS FLICKER/PULSATE CONSTANTLY. IT'S MORE NOTICEABLE AT NIGHT WHILE IN MOTION. OTHER DRIVERS THINK I'M FLASHING MY LIGHTS AT THEM. CHECKED ALL CONNECTIONS OF THE BATTERY AND ALSO THE ALTERNATOR BY MECHANIC AND NO PROBLEM WAS FOUND..
Electrical system, Apr 11, 2019
MY AIRBAG LIGHT CAME ON AND IT STAYS ON
Service brakes, Mar 29, 2019
EXPERIENCED SPONGY/SOFT PEDAL AND INCREASED STOPPING DISTANCE. TOOK VEHICLE TO DEALER THINKING IT NEEDED NEW BRAKES AND WAS TOLD IT NEEDED A NEW VACUUM PUMP, BOOSTER AND MASTER CYLINDER AT A COST OF $1,400. I WAS TOLD THAT THIS WAS A KNOWN ISSUE WITH SEVERAL GM MODELS BUT THE VEHICLE WAS 2,500 MILES/10 DAYS OUT OF WARRANTY AT THE TIME.
Service brakes, Mar 28, 2019
AT VERY LOW SPEEDS, BRAKES DO NOT WORK. BACKING OUT OF DRIVE, PULLING INTO GARAGE, WAITING IN TRAFFIC ON A HILL. PUSH DOWN ON BREAKS AND NOTHING STOPS. WORKS FINE WHEN AT NORMAL SPEEDS. DEALERSHIP COULD NOT CREATE ISSUE AT THEIR SITE. HAS HAPPENED 10+ TIMES AT HOME AND IN PARKING LOTS AND IN TRAFFIC JAMS. BEGAN NOTICING AROUND 40000 MILES. VEHICLE AT 49000 MILES NOW.
Power train, Mar 26, 2019
WHILE DRIVING DOWN A CITY STREET, TRANSMISSION SLIPS AND/OR DOES NOT CATCH ON ACCELERATION. JERKING MOTION AS IT SEARCHES TO CATCH GEARS. FAINT BURNING SMELL.
Other or unspecified, Mar 26, 2019
INCREASED BRAKE EFFORT, BRAKES FREEZE UP IN STOP AND GO TRAFFIC AND SLOW SPEEDS. PARKING, PARKING LOTS ETC
Suspension, Other or unspecified, Mar 18, 2019
THE VEHICLE HAS BEEN THROUGH THE SHOP FOR REPAIR TO VIBRATIONS AT SPEEDS ABOVE 70+ MPH. THEY HAVE NOT BEEN ABLE TO FIX THE PROBLEM. IT SEEMS TO BE A SIMILAR PROBLEM OTHER OWNERS EXPERIENCE TOO.
Service brakes, Mar 13, 2019
TL* THE CONTACT OWNS A 2016 CHEVROLET TAHOE. THE CONTACT STATED THAT THE BRAKES DID NOT WORK WHILE DRIVING AT SLOW SPEEDS. OBX CHEVROLET BUICK (6166 N C CROATAN HWY, KITTY HAWK, NC 27949, (252) 429-5552) DIAGNOSED THAT THE BRAKE BOOSTERS FAILED. THE MANUFACTURER STATED THAT THE VEHICLE WAS NOT INCLUDED IN A RECALL. THE FAILURE MILEAGE WAS 20,000.
Suspension, Mar 8, 2019
DISHONEST, UNTRUSTWORTHY, AND THIEF'S. THEY HAVE LOST MY BUSINESS, RESPECT, AND ETC. I WENT IN 27TH OF FEB 2019 AND LESS THAN 15 HOURS THE SUSPENSION FAILED ON THE DRIVE BACK HOME. THIS WAS A 2.5 HOURS DRIVE SO THE GUY INFORMED ME TO COME BACK SO I CANCELLED PLANS THE MORNING OF THE 28TH TO BRING THE VEHICLE BACK. ON 28TH FEB 2019, I INFORMED THE DEALERSHIP AND THEY TOLD ME IT'S MY RESPONSIBILITY WHEN I DONE PAID YOU ALMOST $34K CASH FOR THIS VEHICLE WHICH IS MY WHILE SAVINGS FOR THE SAFTEY OF MY WIFE; FOUR KIDS. NOW ITS COSTING ME OVER $2K TO FIX THEIR PROBLEM WHICH SUPPOSEDLY PASSED INSPECTION. I HAVE THE PICTURES THAT PROVE OTHERWISE AND THE CHEVY DEALERSHIP SAID IT IS THE WORST THEY HAVE SEEN YET.
Service brakes, Hydraulic, Mar 8, 2019
TL* THE CONTACT OWNS A 2016 CHEVROLET TAHOE. WHILE DRIVING VARIOUS SPEEDS, THE BRAKE PEDAL WAS APPLIED, BUT WAS DIFFICULT TO DEPRESS. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO DARLING'S CHEVROLET (121 DOWNEAST HWY, ELLSWORTH, ME 04605, 866-575-2434) WHERE IT WAS DIAGNOSED THAT THE VACUUM PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND PROVIDED CASE NUMBER: 95099372350. THE FAILURE MILEAGE WAS 69,800.
Service brakes, Mar 4, 2019
BREAKS FAILED ON TWO SEPARATE OCCASIONS APPROXIMATELY 3 WEEKS APART WHILE ATTEMPTING TO STOP COMING INTO THE GARAGE. BREAKS WORKED FINE PULLING INTO THE DRIVEWAY.
Other or unspecified, Feb 15, 2019
THE AIR CONDITIONER HAS STOPPED WORKING, THE CONDENSER HAS BLOWN AND IS BEING REPAIRED. GM HAS AN EXTENDED WARRANTY, UP TO 60,000 MILES.. MINE HAS APPROXIMATELY 69,000 MILES, SO IT'S NOT COVERED UNDER THIS. THIS IS A KNOWN PROBLEM AND GM SHOULD BE REQUIRED TO PAY FOR THIS, AS THEY ARE AWARE THAT THIS IS AN ISSUE WITH SEVERAL MODELS.
Steering, Air bags, Service brakes, Jan 27, 2019, crash
I WAS DRIVING A 2016 CHEVY TAHOE ON A RESIDENTIAL STREET. MY CAR LOST ALL CONTROL OF STEERING AND BRAKES. WHILE DRIVING THE CAR VEERED TO THE RIGHT AND HIT A CAR, CONTINUED ON HITTING 2 MORE PARKED CARS, DROVE THRU SOMEONE'S LARGE HEDGES, AND WAS SECONDS AWAY FROM DRIVING INTO SOMEONE'S HOUSE BUT WAS STOPPED WHEN I HIT THE 2 PARKED CARS IN THE DRIVEWAY. MY AIRBAG ALSO DID NOT DEPLOY. TWO CARS INVOLVED WERE TOTALED. AGAIN, I HAD NO CONTROL OVER THE STEERING OR THE BRAKES. THANK GOD I'M ALIVE AND I DIDN'T KILL ANYONE.
Service brakes, Jan 20, 2019
WHEN DRIVING AT SLOW SPEEDS AS IN A PARKING LOT THE BRAKES FAIL TO STOP TRUCK. THIS HAPPENED THREE TIMES WITH IN A 30 MINUTE TIME PERIOD.
Service brakes, Jan 16, 2019
TL* THE CONTACT OWNS A 2016 CHEVROLET TAHOE. WHILE DRIVING AT LOW SPEEDS, THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO OPERATE AS INTENDED. THE VEHICLE WAS TAKEN TO HEINRICH CHEVROLET (LOCATED AT 5775 S TRANSIT RD, LOCKPORT, NY 14094, (716)-514-4134) WHERE IT WAS DIAGNOSED THAT THERE WAS AN INTERNAL OPENING IN THE VACUUM PUMP, WHICH CAUSED THE FAILURE WHILE BRAKING. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 57,361.
Service brakes, Dec 18, 2018
WHEN DRIVING AT SLOW SPEEDS, PARTICULARLY TO PARK, THE BRAKES DID NOT WORK. YOU CAN PUT THE PEDAL TO THE FLOOR AND THE VEHICLE KEEPS GOING. THIS ONLY OCCURS WHEN AT A SLOWER SPEED, IN BOTH DRIVE AND REVERSE. I HAVE TAKEN IT TO A MECHANIC AND THE VACUUM PUMP HAS TO BE REPLACED. THIS IS VERY DANGEROUS AND COULD HAVE CAUSED AN ACCIDENT, AS I ALMOST HIT ANOTHER CAR BECAUSE I COULDN'T STOP.
Service brakes, Dec 11, 2018
WE TOOK A FAMILY VACATION TO NY AND ALMOST DIED BECAUSE OUR BRAKES WENT OUT. IF YOU RESEARCH 100'S OF PEOPLE HAVE HAD THEIR 2016 TAHOE BRAKE PUMP FAIL. I AM ALSO EXPERIENCE MY CAR JERKING. I AM BEYOND MYSELF THAT A RECALL HASN'T BEEN ISSUED BECAUSE I AM GETTING READY TO GO PAY FOR A PART THAT IS FAULTY. YOU WANT TO MAKE THIS RECALL FAST OR PEOPLE WILL DIE. YOU CANNOT HAVE YOUR BRAKES GO OUT LIKE THAT!! I DIDN'T SPEND $50K ON A CASH LESS THAN 2 YEARS AGO FOR MY FAMILY TO DIE.
Service brakes, Dec 8, 2018
I AM EXPERIENCING LOSS OF BRAKE BOOSTER FUNCTION AT LOW SPEEDS. I HAVE READ ABOUT THE VACUUM PUMP AND THE CONDITIONS MATCH EXACTLY
Service brakes, Nov 29, 2018
TL* THE CONTACT OWNS A 2016 CHEVROLET TAHOE. WHILE DRIVING 5 MPH, THE BRAKE PEDAL WAS DEPRESSED AND TRAVELED TO THE FLOORBOARD. THE VEHICLE WAS TAKEN TO RICK HENDRIX CHEVROLET (LOCATED AT 5665 AIRPORT-PULLING RD, NAPLES, FL 34109, (239) 301-3621) WHERE IT WAS DIAGNOSED THAT THE BRAKE BOOSTER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 40,250.
Service brakes, Nov 28, 2018
WHEN DRIVING AT LOW SPEEDS AFTER I DEPRESS THE BRAKE PEDAL A FEW TIMES, THE BRAKE PEDAL GETS VERY STIFF AND IS ALMOST IMPOSSIBLE TO STOP THE VEHICLE.
Service brakes, Nov 26, 2018
ENGINE HAS BEEN MAKING A CLICKING SOUND FOR THE LAST YEAR. WE TOOK IT IN AND THEY WERE UNABLE TO PINPOINT THE PROBLEM. WITHIN THE LAST COUPLE MONTHS THE BRAKES SEEM MUSHY WHEN PRESSED AT LOW SPEEDS, SUCH AS DRIVING INTO THE GARAGE OR A PARKING SPACE. WE HAVE TO PUSH THE BREAK PEDAL DOWN TO THE FLOOR FOR THE VEHICLE TO STOP. WE ALMOST RAN INTO THE WALL IN THE GARAGE BECAUSE THE VEHICLE WOULDN'T STOP WHEN THE BRAKES WERE PRESSED. WE TOOK IT IN AND THEY INFORMED US THAT THERE WAS A LEAK IN THE BRAKE VACUUM PUMP. MOSTLY LIKELY THIS IS WHY THE ENGINE HAS BEEN MAKING A TICKING SOUND, BECAUSE OF THE LEAK.