Question about GMC Sonoma

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I have GMC sonoma 1998 Trucks.When is raining and moister the trucks did not started,When sunshine or cold the trucks is starting fine.I want to know what is cause problem.Thank you

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Moisture on the electronics, plug wires,distributor cap, electrical connections. most likely under dist cap,and plug wires

Posted on Apr 03, 2011

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Posted on Jan 02, 2017

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My 1998 gmc sonoma wont start when cold. fuel pressure is 60lbs. ive changed thermostat sensor cap rotor wires new battery. i cant figure it out please help


A VERY COMMON CAUSE OF THAT IS THE ENGINE COOLANT TEMPERATURE SENSOR, YOU WILL NEED TO VERIFY PROPER OPERATION WITH A LIVE DATA SCANNER, BEFORE U TURN IT ON IN MORNINGS OR COLD, COLD ENGINE LOOK FOR CTS READING IT MAY READ -40 DEGREES, IF SO THEN SENSOR IS MALFUNCTIONING, BUT WILL NOT SET A "SERVICE ENGINE SOON" LAMP WARNING. OTHER WAY TO CHECK IS TO DISCONNECT SENSOR, I AM ASSUMING THAT WEATHER IS ABOVE 20 DEGREES. LET ME KNOW IF THIS HELPS, CAN ASSIST YOU FURTHER WITH UPDATES

Mar 03, 2011 | 1998 GMC Sonoma

1 Answer

1998 gmc sonoma 2.2L when motor is warm it is hard to start-floods- start good when cold


Check the fuel pressure regulator. Pull the vac line after it is warm and see if it is leaking gas into the vac line.

Dec 28, 2010 | 1998 GMC Sonoma

1 Answer

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Check the magnetic clutch is engaged on front of a/c pump, have the motor running, a/c on and fan on high, if the centre hub is static the pump in not switched on, this can happen when the gas pressure gets low.

Aug 05, 2009 | 1998 GMC Sonoma

1 Answer

The truck will start fine when cold, but sometimes when it warms up it will crank and crank before it starts up.. 1998 GMC Sonoma 2.2L automatic


It probably is a fuel pressure regulator. I don't have my books home for this vehicle so I am unsure as to where it is located on your vehicle but you might go to the parts store and ask them if they have one for your pickup and if they could show you where it is at. Most the parts stores will help you out. If not go to one that will. They are all pretty good about helping out.

Jul 30, 2009 | 1998 GMC Sonoma

1 Answer

99 GMC sonoma will start with starting fluid then


The 99 GMC, when it acts up, check whether it has fuel and/or spark. It could be related to fuel pressure, available electrical power, ignition component/s.

May 31, 2009 | 1998 GMC Sierra

2 Answers

Location of iat high input sensor


The iat (intake air temperature) is located on the air filter housing. If its reading high its probably unplugged

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2 Answers

99 GMC sonoma will start with starting fluid then


Will the engine start on its own after the engine is warmed up?
Let me know.
Regards,

Mar 23, 2009 | 1998 GMC Sierra

1 Answer

Missing when first started. Stops when warms up.


016 Engine Misfire Misfire Scan Data Find someone who knows what scan data is an knows how to use it .Intake manifold vacuum leak .
Rough Running When Cold GMC Yukon

Jun 19, 2017 | 1998 GMC Sonoma

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