WHY THE 1988 JAGUARWILL NOT START WHEN ITS COLD ENGIS COLD

Bad coolant temp sensor, ignition weak, some engines have a cold start injector but not sure if yours does.

is it efi engine or carburator ......you may nedd to clean intake throttle body......

Maybe just that the motor is cold or there is moisture in the carbie
Diesles usually smoke when you first turn them on and let them idle

no its not running lean,,,the velves will rattle when cold,,its the way they are,,,the cold start will only stay on for a fuw minuets till the engine temp censor tell it to shut off

EATHER IS NOT GOOD , ITS FOR COLD COLD MOTORS.. CHECK YOUR FUEL PRESSURE AND GAS FILTER .YOU MIGHT HAVE A BAD FUEL PUMP ITS IN THE GAS TANK!!! . USE CARB & CHOKE CLEANER ..PARTS MASTER # 1736 ..ITS NOT AS HOT AND WONT POP A HEAD GASKET .IF'N I WAS ANY HELP AT ALL PLEASE VOTE.. JAY

All cars require a little priming. Try this, turn the key on, let it sit for about 30 seconds then try and start your car. When you first turn the key, the fuel pump will begin pushing fuel. My Mustang does the same thing when its been cold. Of course, in Tucson it does not get cold very often.

sounds like the thermostat stickng as when engine gets cold the choke will start workin again, causing the over reving or your electric fan is on all the time "over cooling" the engine

Change the coolant sensor located close to the thermostat housing. This is easy but do not over tighten it. You will have the same problem if you do. Tighten till it does not leak only.Good luck!

You have a cold start injector that is controled by coolant temp and more than likely the sensor, which is located center of intake, between #2 and 3 injector...it looks a bit like a reg. temp. sensor and will have either blue or black electrical harness connected to it. This sensor 'tells' the cold start sensor, a fifth injector for cold starting, when coolant is below a certain temp and gives extra gas. Try to find one at a junkyard, otherwise, www.getcoolparts.com about $80 new. Better yet, buy a Bentley manual and there's diagnostics using a multimeter on diagnosing specifically. I have an 88 but it is an N/A, not a turbo and is an 8v...if your's is a 16 valve, look for sensor in same spot but under fuel rail/injector area.

hi first,fuse for ignition system was ok,clean your distributor cap and rotor,check connection on electronic switching unit,maybe your ignition coil,ty