Question about 1997 GMC Jimmy

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We replaced the head gasket on our 1997 gmc jimmy, put everything back together, now it won`t start,got power on the outside and the inside, but no lights on the inside no headlights and the steering won`t lock, we have checked the batterie, the alternator and all that was good, we checked the key lock the ignition switch and still can`t get it to start

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If the battery tests good and all the wires are hooked back up them i would think that you missed on or more of the ground wires that bolts to the block or a wire end has come off of one of them.Follow the battery negative cable to the block and remove the bolt that holds the cables to it.Examine all the ends for corrosion or broken wires,repair as necessary.If you find no problem here then you need to do the same thing with the positive wires that bolt to the starter post,these also need the fusible links checked[they will be stretchy when tugged on if they are blown.The ignition not locking the steering problem... i need to know whether it will go into park our not and whether the key will come out of the ignition.

Posted on Feb 01, 2010

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I have a 97 gmc jimmy and we puta head gasket on and now there isn't any power after the starter? Anyone have any ideas?

Starter relay is in the middle of the firewall near the top of the firewall. I would check connections and /or replace that relay. They are very inexpensive.
Also, you could turn the key on and run a jumper wire from power to the starter solenoid and see if it starts. You can easily get to the solenoid though the right wheel well. Be careful not to ground the wire by mistake.

Jan 21, 2013 | 1997 GMC Jimmy

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How to remove head gasket on 1997 jimmy

I had the same problem on a 2000 Jimmy and it turned out to be the intake manifold gaskets not the head gasket so you may wanna check that out before you start the grueling job of head gasket replacement intake gaskets are a much easier fix

Dec 06, 2011 | 1997 GMC Jimmy

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A friend has a '97 GMC Jimmy, and has been told she needs a new intake manifold gasket, and that the heads are warped. She doesn't have a lot of money (and only the one vehicle). Any suggestions? And is...

Yes and no. With a chilton repair manual and a torque wrench it's not hard to replace heads on the trucks (LABLE EVERYTHING) The problem is the heads won't be fixable, and at a $1000 a piece for rebuilt ones its not cheap. Most junkyard motors will be there for the same reason as her truck, so don't use heads you don't know are good. Also, buy a complete engine rebuild gasket kit. There are a lot of little gaskets that you cannot but separately and should be replaced as you go. If there is water in the oil (light brown / bubbles) the motor is probably junk, and a motor swap would be better. Lastly give it a shot, most places will just say replace the motor for $3000, so you can't do any more damage and don't forget to replace the thermostat, as this is probably what caused the problem.

Feb 23, 2011 | 1997 GMC Jimmy

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I have a 1997 GMC Jimmy, 4.3 v6, i have replaced timing chain

fuel pressure regulator it is located on the spider pump behind the throttle body

Feb 13, 2010 | 1997 GMC Jimmy

1 Answer

2001 gmc jimmy 4.3l.idles low and will stall when put into gear unless engine is reved up a little.

Clean the Idle air control valve (IAC), it's located by the throttle body so the best thing to do is give the throttle body a good cleaning with throttle body cleaner. Do not use carb cleaner, it's to corrosive for the gaskets used on the throttle body's. Just follow the instruction on the spray can and after your done putting everything back together. Turn the ignition key's to the run position for 10 seconds and then off for 10 seconds to reset the IAC. Start the engine and let idle for 1 min and go for a test drive. If that does not work, turn the ignition to the run position and pull the ecm(BATT) fuse out for 30 seconds and then place it back in start te engine. The engine may stall but let it, don't touch anything. Just start it again and let idle for 1 min then go for a test drive. The ECM is just relearning the sensors like the first time the jimmy was driven off the assembly line. Good luck and hope this helps. Keep me posted be glad to get your jimmy running 100%. 

Jul 06, 2009 | 2001 GMC Jimmy

1 Answer

Installed newly rebuilt engine has no power

Bad engine electrical wire.....going to fuse box......or not properly mounted..check wire for loose or missing connections...

Jun 26, 2009 | 1997 GMC Jimmy

1 Answer


it is start of blown cylinder head gasket, change it before you have engine over heat.

Jan 18, 2009 | 1991 GMC S-15 Jimmy

1 Answer

Power steering fluid everywhere

hello it sounds like the high pressure line probaly has a pin hole or possible lek at the factory crimp first thing i would do is have somone start the car turn the wheel all the way to one side the pressure will build up while looking with a flash light look then you may have to put on ramps if it cant be seen from top goodluck

Sep 18, 2008 | 1997 GMC Jimmy

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