Can't start JGC in cold

[onuphis]

Hey folks,

I've got a 94 JGC that won't start. Batteries fine (11.5v), fuel pump sounds ok, and the starter cranks but I can't get it to turn over.

Some other particulars: Fuel tank was left on E for a day and it got cold ~10F - added some dry gas and put in 10 gallons of gas - but still no start. 3 days ago it got real warm ~ 60F and it started right up. Drove it around the block - no problems. Cut it off, let it sit for 30 mins, and it started up again.

Went out the next morning after a drop in temp to about ~30F and now it won't start again.

Tried starter fluid but does not work.

ANy thoughts?

[Dale Aeppli]

Originally Posted by onuphis

Hey folks,

I've got a 94 JGC that won't start. Batteries fine (11.5v), fuel pump sounds ok, and the starter cranks but I can't get it to turn over.

Some other particulars: Fuel tank was left on E for a day and it got cold ~10F - added some dry gas and put in 10 gallons of gas - but still no start. 3 days ago it got real warm ~ 60F and it started right up. Drove it around the block - no problems. Cut it off, let it sit for 30 mins, and it started up again.

Went out the next morning after a drop in temp to about ~30F and now it won't start again.

Tried starter fluid but does not work.

ANy thoughts?

HI, CHECK IF YOU HAVE SPARK AT COIL WIRE, IF NOT YOU COULD HAVE A BAD CRANKSHAFT POSITION SENSOR. IF YOU DO GET SPARK AT COIL WIRE . PULL A PLUG WIRE AND HOLD TO GROUND, IF YOU DON'T HAVE SPARK AT PLUG AND YOU DO AT COIL WIRE THEN YOU MAY HAVE A BAD CAMSHAFT POSITION SENSOR IN DISTRIBUTOR. USE INSULATED PLIERS TO HOLD WIRE DALE
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[JDPascal]

First of all LEAVE THE STARTING FLUID IN THE TOOL BOX OR WHERE EVER YOU STORE IT!!!!!!!

you will only create more problems if you use it on a gas engine. Bent pushrods, bent connecting rods are some of the usual damage.

you should have more than 11.5 volts at the battery terminals. `12.2v is a DEAD battery. and with the cold you loose atleast 50% efficiency. Check to see if it is frozen!!!! probably is.

If you take the battery out, either put in a "new" fully charged warm battery or take that battery in the house to warm up and charge it. Make sure you don't try to charge it if it is frozen.

JD