WHILE TAXIING INTO THE DEICING PAD; LGT STRIKES A DEICING TRUCK WITH WINGTIP.

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PUSHBACK AND START WERE NORMAL FROM GATE. WE CALLED RAMP TWR FOR TAXI AND TOLD HIM WE WOULD NEED DEICING. RAMP TWR INSTRUCTED US TO TAXI UP BEHIND THE MLG THAT WAS AT SPOT 'L' ON THE PAD AND TO PLEASE SQUARE IT UP AS MUCH AS POSSIBLE BEHIND THE MLG. WE DID AS INSTRUCTED AND PARKED IN LINE AND APPROX 20 FT BEHIND THE TAIL OF THE MLG. WE SAT IN THIS POS FOR ABOUT 10-15 MINS WITH THE BRAKES SET; THE APU AND THE #1 ENG RUNNING. SHORTLY AFTER SETTING BRAKES A GND PERSON PLUGGED INTO THE INTERPHONE AND SAID 'WE WILL DEICE YOU AFTER THE MLG AND START ON THE R SIDE.' HE THEN UNPLUGGED FROM THE INTERPHONE AND LEFT. WE THEN WATCHED AS 1 GLYCOL TRUCK SPRAYED THE L SIDE OF THE MLG AND THEN DROVE BACK AROUND THE NOSE OF THE MLG TO SPRAY THE R SIDE OF THE MLG. WHEN THE GLYCOL TRUCK WAS FINISHED; HE MOVED TO A POINT PAST OUR R WING ON THE RAMP. THE MLG WAS CLRED TO TAXI AND CONTACT GND AT 1E. RAMP TWR THEN TOLD US TO TAXI UP TO SPOT 'L.' I THEN TURNED ON THE TAXI LIGHT AND BOTH RWY TURNOFF LIGHTS. I ASKED MY COPLT IF THE GLYCOL TRUCK ON THE R WAS CLR. HE LOOKED AND SAID YES; IT WAS STANDING WELL CLR TO THE R. I LOOKED TO THE L AND SAW NOTHING. I TURNED OFF THE LIGHTS AND LOOKED FOR THE GND GUIDE PERSONNEL. I SAW HIM AHEAD OF ME WITH BOTH WANDS; LIGHTS ON; HELD AT HIS SIDE. I RELEASED THE PARKING BRAKES AND ADVANCED THE #1 THROTTLE TO 2000 LBS FUEL FLOW. AS THE ENG SPD CAME UP; I FELT SEVERAL SMALL BUMPS. I IMMEDIATELY RETARDED THE THROTTLE TO IDLE AND SET THE BRAKES. I AT FIRST SUSPECTED COMPRESSOR STALL; BUT SINCE IT WAS #1 ENG AND NOT #2; I THOUGHT IT COULD POSSIBLY HAVE BEEN SOMETHING ELSE. I ASKED THE FO TO CALL RAMP TWR AND HAVE SOMEONE COME OUT TO THE ACFT. RAMP TWR AGAIN TOLD US TO TAXI FORWARD. THE FO THEN TOLD RAMP TWR WE COULD NOT AS WE THOUGHT WE MAY HAVE HIT SOMETHING; HOWEVER; THE RAMP GUIDE WAS STILL STANDING IN FRONT OF US WITH HIS WANDS AT HIS SIDE. IT WAS 2 TO 3 MINS LATER BEFORE WE TALKED TO ANYONE ON THE INTERPHONE. IT WAS THEN THAT WE WERE TOLD THAT WE HAD HIT A GLYCOL TRUCK WITH OUR L WING; BUT NO ONE WAS HURT. (I STILL COULD NOT SEE THE TRUCK OUT THE L SIDE.) MAINT HOOKED UP A TUG TO THE ACFT AND PUSHED US BACK FREE OF THE GLYCOL TRUCK. STAIRS WERE BROUGHT UP TO THE ACFT AND AN AGENT CAME ON BOARD. I TALKED TO THE AGENT WHEN HE BOARDED THE ACFT AND HE TOLD ME THE GLYCOL TRUCK DRIVER HAD SAID HE HAD RUN INTO US. I TOLD THE AGENT I WAS NOT SURE IF THE ACFT WAS MOVING OR NOT. I WAS LOOKING AHEAD FOR TAXI INSTRUCTIONS AND WOULD NOT HAVE BEEN ABLE TO DISCERN A MOVEMENT OF ONLY SEVERAL FT. NORMALLY; MOVEMENT OF THE ACFT WOULD NOT HAVE STARTED UNTIL SEVERAL SECONDS AFTER THE ENG HAD COME UP TO SPD. THE PAX AND CREW WERE DEPLANED AND TAKEN TO THE TERMINAL VIA BUSSES. AFTER RETURNING TO THE TERMINAL AND PLT'S LOUNGE; I ATTEMPTED TO CALL THE CHIEF PLT; BUT WAS UNABLE TO REACH HIM. I THEN CALLED CREW SCHEDULING AND WAS REFERRED TO THE CHIEF SCHEDULER; WHO; IN TURN; CONNECTED ME WITH AN ASSISTANT CHIEF PLT. I RELATED THE STORY TO HIM AND HE SAID IN HIS OPINION THAT IT WOULD BE ALL RIGHT TO CONTINUE ON OUR ROTATION. AFTER BOARDING OUR PAX ON A NEW ACFT; WE DEPARTED 3 HRS AND 13 MINS LATE. THERE WERE SEVERAL FACTORS CONTRIBUTING TO THIS INCIDENT: OBSCURED VISION FROM THE GLYCOL ON OUR WINDSHIELD FROM THE DEICING OF THE MLG; LACK OF A DEFINITE PROC FOR A 'CAR-WASH OP;' LACK OF COM WITH THE DEICING PERSONNEL (HAND-HELD RADIO WOULD SOLVE THIS). WE NEVER SAW THE TRUCK WE HIT. IT HAD NOT BEEN USED ON THE MLG AND WE FEEL IT HAD APCHED US FROM THE REAR.