2000 jimmy hard to start below 35 f.

[ozzig1]

I Am Still Having Problems With The 2000 Jimmy. Should I Add To My Old Posts?

[old_master]

If the problems are the same, and you have not resolved them yet, post in the same thread. If you have new and different problems, start a new thread.

[ozzig1]

I Went Back Checked The Fuel Pressure Bleed Offlast Month. It Held Pressure For 3 To 5 Min. At 55 Psi. I Think My Gage Was Loose. The Weather Turned Warm And It Started Fine. Then A Couple Of Days Ago The Temperature Dropped To 2 Degrees F.wouldnt Start.i Hooked A Test Spark Plug To No. 1 Plugwire. No Fire On Crank. When I Quit Cranking The Plug Would Fire. A Friend Thought It Might Need A Ground Strap .

[old_master]

Pink wire at ignition coil should show battery voltage when the ignition is in the RUN position. If not, check fuses and wiring. The other wire should pulse when cranking. If so, you might have a faulty coil. If not, possibly a faulty ignition module or crankshaft position sensor.

[ozzig1]

I Just Checked The Pink Wire And It Had 11.9 Volts. The Other Wire Had No Voltage When Cranking. I Replaced The Coil 2 Weeks Ago.how Do You Check The Crankshaft Position Sensor? I HAVE A USED MODULE TO TRY.

[ozzig1]

I Wanted To Let You Know That I Put A Used Module On And Cleaned The Ground Strap On The Firewall. It Is Starting Easy On The First Try. I Have Noticed It Starts Easier If You Give It A Little Gas. Thanks For All Your Help.

[83cutlass]

So it sounds like the problem was weak or no spark. If you haven't done a full tune-up in while it might be time to consider plugs, wires, cap and rotor.