Can a GMC Jimmy start in the Cold?

I have a 1999 GMC Jimmy with a 4.3 vortex engine and it won’t start in the cold or wet, rainy weather.

What kind of problems does a 1993 Jimmy have?

I have a 1993 Jimmy. It has been having starting issues. We have heard everything from the fuel injectors needs to be cleaned to replacing the water pump. We have replaced the computer twice, the second time the garage replaced it free. But now it does not start but turns over.

Can a 4.3 Astro start in wet weather?

Also wouldn’t start on humid days. yes damp weather will cause weak ignition system parts to missfire, or even fail, and even stall the engine in dangerouse driving conditions (heavier rain) especially on 4.3 motors and especially on Astro’s as the dog house will hold in mousture.

I have a 1999 GMC Jimmy with a 4.3 vortex engine and it won’t start in the cold or wet, rainy weather.

Why does my GM Truck start so cold?

Look up piston slap to study it more its mostly from the short piston skirts that allow the piston to rock around more when cold. Also different oils help, i run moble 1 truck 5w30 in my truck with 116k on it. I have heard that gm top end cleaner and the 3m kits work well.

Can a Vortec 4.3 crank but won’t start?

It cranks like a champ, but just doesn’t start, no check engine light on, and nothing else comes up on the good scanners either. Once it starts there is no problem, so the mechanics working on it have just been changing parts trying to guess, I guess. It has new plugs, wires, distributor cap and rotor, ICM, MAP censor and fuel injectors.

Is there a problem with my GM Truck?

My 2002 did the same thing below freezing. I drove it for another 30,000 miles, before selling it, with no issues. I still speak with the guy that bought it. He has 180,000 (80,000 miles from when the slap started) miles on it and still no issue.

Why does my 2000 Chevy Silverado not start?

Question: My 2000 Chevy Silverado that will not start unless i pour gas in the throttle body. It has been sitting for about 8 months and prior to that there was no problems at all. I have good fuel pressure with no bleed down. Answer: Does it start after pouring gas in throttle and keep running fine? What is the fuel pressure?

Is it hard to start a GMC Sierra?

I have a 2011 GMC Sierra SLE 5.3 LC9. Recently it has been hard starting after it sits a while. The truck is stored inside at about 60 degrees. It seems to crank for about 6-7 seconds and then when it finally fires seems to stumble until it finds idle. It almost seems to be too rich.

Why does my car have a hard cold start?

If they were having problems, it would be having issues other than at cold start. How long has it been doing this? Any chance it’s fuel-related? I see WI, winterblend maybe?

Why does my Vortec not start in the rain?

If it happens in the rain then make it rain use a spray bottle and wet your ignitiodn components especially coil pach and coil wire to distributor. One other possibility could be a crank sensor or the small conn3ctor at the coil pack that commqnds the coil on and off. Have someone crank it while you wiggle it. Good morning folks.

Can a car misfire when it rains or snows?

yes damp weather will cause weak ignition system parts to missfire, or even fail, and even stall the engine in dangerouse driving conditions (heavier rain) especially on 4.3 motors and especially on Astro’s as the dog house will hold in mousture.

What to do if your Express van won’t start?

I have 2 express vans that won’t start after sitting in rain. replaced coils, distributor caps, rotor buttons… one has new distributor, plugs and wires as well…??? both run great after it dries up… Experience: ASE Master Certification. GM World Class Certification

Why does my van not start in the rain?

This problem is normally due to water dripping onto the connection at the PCM electrical connector. This is located directly below the hood opening on the drivers side.

Why is my ignition cylinder not working properly?

A worn ignition cylinder may not function correctly when the key is inserted. This may lead to issues with certain positions of the key. Certain positions may not work correctly, or may require jostling of the key before they work.