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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97 gmc jimmy cranks but won't start, have replaced everything possible but still won't start, most of the time the brake lights won't work, or the gauges goes crazy. I have changed relays,...

There are two basic reasons for not starting - no spark or no fuel, both of which are controlled by the ECM. You need to check error codes and these items - for the spark, test it at the cylinder 1 sparkplug; for the fuel check the pressure (if too high or low, problem!).

Aug 28, 2017 | 1997 GMC Jimmy

1 Answer

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

1 Answer

1995 GMC Sonoma, Wont Start, On Electrical Power after Replacing Head Gaskets

Look at the main power supply battery junction block . Fusible link's . Firewall driver side . These power up the whole vehicle . Do you have a voltmeter ,do you know how to use one to test B+ voltage ? Here is a web site for free wiring diagrams . Enter vehicle info. year , make ,model and engine size . Under system click on electrical distribution ,under subsystem click on power distribution . Click the search button ,then the blue link's . Look at the diagrams ,get out the voltmeter an test for B+ voltage where it's suppose to be.

Sep 05, 2017 | 1995 GMC Sonoma

1 Answer

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

3 Answers

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

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Feb 13, 2010 | 1997 GMC Jimmy

1 Answer

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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.

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