The following is a list of common automotive problems that AutoTech will help you diagnose. Please see the example diagnosis to see how AutoTech will typically carry out a diagnostic consultation. Also, AutoTech covers over 600 popular cars, trucks, vans, and sport utilities. Please check the vehicle list to see if your vehicle is covered. Engine Problems Black smoke coming from exhaust while driving White smoke coming from exhaust while driving Blue smoke coming from exhaust while driving There is a "rotten egg" smell coming from my vehicle Engine lacks power on both flat roads and hills Engine's power is fine on flat roads but weak on hills When idling, the vehicle shakes like a tank While accelerating, the vehicle hesitates and even jerks Engine stalls while accelerating Engine stalls while idling Engine stalls while driving Engine makes pinging sound but only on uphill roads Engine makes pinging sound on both flat and uphill roads Engine starts to sound rough when I reach high speeds Engine runs somewhat rough when idling Engine runs on for a few seconds after it is shut off Engine backfires through tailpipe while driving Ticking noise coming from the engine while it's running High pitched squeal coming from the engine while it's running Engine runs normal but gas mileage is less than expected Starting Problems Vehicle starts but engine turns over slowly before it starts Vehicle starts but black smoke comes from exhaust initially Vehicle starts but white smoke comes from exhaust initially Vehicle starts but blue smoke comes from exhaust Vehicle starts but engine sputters while trying to start Vehicle starts but will not stay running Vehicle starts but engine backfires initially Vehicle not starting - no sound at all when trying to start Vehicle not starting - clicking sound only when trying to start Vehicle not starting - spinning sound only when trying to start Vehicle not starting - grinding sound only when trying to start Vehicle not starting - engine turns over quickly Vehicle not starting - engine turns over slowly Vehicle not starting - engine backfires while trying to start Vehicle not starting - engine sputters while trying to start Vehicle not starting - only when engine is very cold Vehicle not starting - only when engine is very hot Brake Problems Brake pedal goes down much further than it used to Brake pedal sinks to floor when brakes are lightly applied Brake pedal vibrates while applying brakes Steering wheel vibrates while applying brakes Entire vehicle vibrates while applying brakes Brakes make a squealing noise Brakes make a grinding noise Rattling sound coming from brakes When I am braking, the brake pedal feels spongy The vehicle pulls to one side when I step on the brakes After releasing brake pedal, one brake is still partly on After releasing brake pedal, all four brakes are still partly on When I apply the brakes, I hear a click from front of vehicle When I apply the brakes, I hear a clunk from front of vehicle I have to step extra hard on the brake pedal to stop vehicle One wheel locks up/skids when brakes are applied Drivetrain Problems - Manual Transmission Grinding only when shifting into one particular forward gear Grinding when shifting into two or more forward gears Grinding when shifting into reverse gear Grinding when shifting into all gears Noise only while moving in one particular gear Noise while moving in two or more gears Pops out of first gear while driving Pops out of second gear while driving Pops out of third or higher gear while driving Pops out of reverse while backing up When releasing clutch pedal, engine races/poor response While driving, clutch pedal vibrates as it's depressed Growling/grating noise when clutch pedal is fully depressed Squealing/howling noise as clutch pedal is being released From a stop, vehicle shakes as clutch pedal is released From a stop, I can't shift into first gear/no grinding Drivetrain Problems - Automatic Transmission From a stop, sluggish initial forward movement/OK then on From a stop, delayed initial forward movement/OK then on From a stop, upshifts through gears occur too early From a stop, upshifts through gears occur too late From a stop, upshifts through gears occur timely but are rough From a stop, upshifts through gears are erratic During at least one upshift, engine races before gear engages When I shift into gear from "P", I hear a clunk (idle is normal) While driving, I hear a clunk when I release the accelerator After shifting to "R", there's a delay before vehicle backs up One particular gear doesn't seem to work/other gears OK None of the gears work at all (i.e. there is no response) Vehicle doesn't hold when gear selector is in "P" When I floor it, the passing gear doesn't kick in Whining/growling noise coming from transmission while driving Suspension Problems At a certain speed, the front end vibrates but not the rear end At a certain speed, the rear end vibrates but not the front end At a certain speed, the entire vehicle vibrates Front end dives when applying brakes Loud thump from front end when driving quickly over a dip Loud thump from rear end when driving quickly over a dip Overall, the vehicle's ride is very bouncy/mushy Overall, the vehicle's ride is hard (i.e. I can feel every bump) Abnormal tire wear - wearing mainly on inside edge of tire Abnormal tire wear - wearing mainly on outside edge of tire Abnormal tire wear - wearing on both edges of tire/not in middle Abnormal tire wear - wearing mainly in middle of tire Abnormal tire wear - wearing on various spots of tire Steering Problems Steering feels loose and sloppy, especially at higher speeds During turns, there's a clicking noise coming from the front end Tires screech when vehicle is turning a corner at normal speed While driving, the vehicle pulls slightly to the left or right While driving, the vehicle pulls heavily to the left or right When engine is cold, steering is stiff (mainly in one direction) Sometimes while driving, steering becomes stiff for a moment Over time, steering has gradually become stiffer/harder There is looseness in the steering wheel/steering column At a certain speed, the steering wheel vibrates While coming out of a turn, steering wheel doesn't easily return Miscellaneous Problems Warning light - brake light briefly flickered while driving Warning light - brake light came on steady while driving Warning light - anti-lock brake light came on while driving Warning light - oil light occasionally flickers while driving Warning light - oil light came on steady while driving Warning light - battery light occasionally flickers while driving Warning light - battery light came on steady while driving Temp. gauge - reads hot only in prolonged, slow traffic Temp. gauge - reads hot only in hot weather (at any speed) Temp. gauge - always reads hot shortly after starting engine Radiator - boils over when engine is only semi-hot A/C - not blowing cold air anymore (steady reduction over time) A/C - not blowing cold air anymore (sudden reduction) A/C - blows mostly cold air (but sometimes it blows warm air) A/C - blows air that has a mildew odor Heater - blows air that isn't warm (even though engine is hot) Vents - air barely blows out (even with fan at highest setting) Vents - air doesn't blow out at all (at any fan setting)