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What would cause a 94 gmc jimmy hard to start at first and hesitate when you accelerat? And done put plugs and wires and rotary button and distributor cap on it

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First things to look at are the throttle position sensor (TPS), idle air control (IAC) and EGR valve. You also may have a buildup of carbon etc. in the throttle body or blocking the IAC ports.

Posted on Apr 25, 2017

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1996 Gmc Jimmy will not start new wires plugs dist. rotor act like it will start but does't


you are out of timing or you put your distributor 180 off or you may have hooked the plug wires up wrong you may have 2 in the wrong place

Apr 16, 2013 | 1996 GMC Jimmy

2 Answers

My 94 GMC Jimmy 4x4 vortec, is hard to start, cuts off when i make stops, have to put it in neutral when i am at lights and still have to give it gas then. already changed the distributor cap and rotor...


I recently had similar symptoms from my Kia Rio, hard to start, bad idle in gear, etc.
Ended up being the idle air control valve, you can try cleaning yours with carb cleaner and see if there's any difference.
A clogged fuel filter can produce the same symptoms too, that might be the easiest thing to start with, then it's just a process of elimination from there.

Sep 02, 2011 | 1994 GMC Jimmy

1 Answer

When I'm on the highway driving my 94 GMC Jimmy.,


have checked the play in the distributor shaft gear . excessive play can cause a timing problem for a moment. also has the service engine soon light came on with a code 42 for the ignition system. ignition control module can cause this concern also.

Jul 14, 2011 | 1994 GMC Jimmy

1 Answer

The 94 jimmy is running rougf I did a full tune up I took one of the new spark plugs out a there was a lot of sout on it it was preety black it may be a dead cyender there is very littel spark


YOU did the tune up? Check that the wires are in the right position, that the connection to the plug and distributor cap are good. Did you replace rotor and distributor cap? Wires could be needed. That wire might be bad

Feb 03, 2010 | 1994 GMC Jimmy

1 Answer

I have a 1997 gmc jimmy and it is hard to start when it is cold i think its a choke problem.


Hello,
The choke on your vehicle is a computer controled fuel system. It is usually a fuel pump but sometimes a Distributor cap and rotor problem. I would first check the distributor cap and rotor. Look for white corrosion in the cap and in the bottom of the distributor. If you see the corrosion in the bottom of the distributor clean it out with brake cleaner.The Coil wire some times fails causing a hard start situation. I suggest checking these things before doing any thing with the fuel pump. I would also replace the fuel filter and spark plugs if you do end up replacing the cap and rotor.

I hope this helps.

Roy

Nov 06, 2009 | 1996 GMC Jimmy

1 Answer

1994 GMC Jimmy hard to start and runs rough when first started


i think if you checked the sparking plugs and map sensors then check your distributer its maybe not delivering the current nedded to perform the spark to some of the cylinders

May 30, 2009 | 1994 GMC Jimmy

2 Answers

Spinning will not crank


I had the same problem with a GMC s-15 Jimmy changed the distributor and it has not done it since

Apr 14, 2009 | 1995 GMC Sierra C1500

2 Answers

Hard start when cold/first start in morning


The pressure relief valve is in the spider fuel injector not the fuel pump. We have had our 94 gmc jimmy for 4 years & have had to replace the fuel injector 4 times which cost right at $500 each time for the part. Yes the spider fuel injector cost averages around $500.

Nov 16, 2008 | 1994 GMC Jimmy

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