Question about 1995 GMC Jimmy

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1998 gmc jimmy cruise control stopped working

I did look in the engine compartment next to the cruise control module and there are two rubber vacuum lines,one is dry rotted significantly and the other that goes underneath the throttle body I believe is literally split in half about 3to4 inches along the rubber line.the crusie control used to work intermitently,now it finally stopped working. I do miss my cruise control.

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Posted on Jan 02, 2017

SOURCE: will not start

Check battery voltage, clean cables. Then replace oil pressure switch. Then check/replace fuel filter. Finally add gas treatment to tank.

Posted on Oct 02, 2008

  • 599 Answers

SOURCE: No fuel to the engine

'puter wont deliver fuel if oil pressure switch is reading bad weak or faulty..or if ignition is not sending proper signal to 'puter....on the mechanical side...you could have a bad fuel pressure regulator sending all fuel right back the return line and not into the engine/ clogged fuel rail due to using some sort of nasty fule injector cleaner than turned the lines to jello inside..etc .etc.

Posted on Nov 08, 2008

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SOURCE: 1995 gmc jimmy 4wd high not working

sounds like it is loosing vacuum check all the lines for a crack even the engine lines will cause it to loose vacc. pressure. if it is not run to the vacuum reserve canister you may not have enough vacc. to hold the actuator in several times I just run new lines and that helped and not very costly.

Posted on Dec 25, 2008

  • 524 Answers

SOURCE: Need 95 gmc jimmy vacuum diagram. I have a loose

THat goes to your map sensor. If you look very closely under your hood there will be a vac line diagram there

Posted on May 09, 2010

  • 46 Answers

SOURCE: where can I find a diagram of the brake lines for

If it's a metal line, Your local auto parts store should be able to order it for you or worst case you'll have to make your own from straight tubbing and a bender. I don't recall ever seeing diagrams for metal lines, usually there pre made to replace the factory one or you can splice a replacement piece in place of a damaged section. AS far as the line goes to the module, try following it up to it with a good flahlight and a sharppe from the rear forward.

Posted on May 30, 2010

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1 Answer

Cruse control not worklng


Generally, there is an interlock between the brake pedal, transmission position and cruise button. Most likely the problem is simply corrosion in the connector by the cruise control module in the engine compartment. Secondary: The vacuum line may need to be replaced or just may have come loose. It's time to replace most rubber lines in an '87 car.

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2003 GMC Envoy, how to check vacuum lines


Look at the vacuum hose on the cruise control actuator. It may have gotten gummy or lost it's grip on a connector.

May 09, 2014 | GMC Envoy Cars & Trucks

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When pulling out from a stop my 1999 jimmy starts to buck the transfer case light comes on


There is a "modulator" device that is mounted to the transfer case which engages the 4wd..these go bad often...it has vacuum lines connected to it coming from the engine compartment..I think there are 3 lines going to it...this part is about 30 bucks at any parts store

Apr 25, 2011 | 1999 GMC Jimmy

1 Answer

1998 gmc jimmy you here the 4x4 ingage but the front wheels want pull


Hello Bj.

This is a common issue with the Jimmy's in that year.
Because you can hear the shift motor it likely works.
The problem is likely at the front differential. There is a vacuum actuator that has a cable that pulls on a lever which engages a clutch inside the differential tube.

This vacuum originates at the engine, goes to the transfer case. On the transfer case the is a vacuum switch which then directs the vacuum to the vacuum motor when 4x4 is called for.
You will need to check for vacuum at this motor which is located on the right front engine compartment down low. Tricky to get to but not impossible. Follow the cable from the right side of the differential if you can't locate it.

If no vacuum, trace it back to the leak. If no leak, the vacuum switch on the transfer case may be bad.
If vacuum is there, which I suspect it is, replace the vacuum motor and cable assembly.
There you are, if you have further questions, please ask me here.

Thank you for using FixYa.

Jan 16, 2011 | 1998 GMC Jimmy

1 Answer

I have a 1998 GMC Jimmy that has on 160,000


The problem is with your vacuum system. The hubs are operated by a vacuum pump/motor on each individual wheel. This is usually where the problem is. It's not expensive to fix but you might need a vacuum gauge/pump to diagnose which wheel the problem is coming from. Also, the vacuum leak could be from another part of the system. To know whether or not it is try your cruise control. If it works ok then its probably at the wheel. More than likely just a hose since you said it has rarely been used.

Dec 17, 2009 | 1998 GMC Jimmy

1 Answer

EMC wire problem (wire purple) is stopping injectors from working. wire has 60 ohms of resistance. what is EMC and where is it?


HI ECM is the computer that controls your engine ,electronic control module .its behind your glove compartment .

Sep 30, 2009 | 1989 GMC S-15 Jimmy

2 Answers

The cruise control just quit


By removing the ABS brake fuse you are disabling other components as well. The ABS fuse supplies voltage to the brake switch that tells the ECM and ABS module the the brake has been applied. If neither of the modules can see the brake switch the cruise control will be electrically disabled. You need to reinstall the fuse.
Let me know.
Regards,

May 10, 2009 | 1997 GMC Jimmy

1 Answer

Check Engine Light came on


get a scanner check code sound like vechicle speed sensor.

Apr 20, 2009 | 1998 GMC Jimmy

1 Answer

1998 gmc jimmy has no 4x4 anymore


Hi there. under your battery is the 4x4 actuator. there should be a vacuum hose that is connected to it. this actuator is the one that will lock your front diff in 4x4. this hose could fall off and you will not have 4 wheel drive without it connected.If that hose is connected, there is another hose which comes from the vacuum switch up the back of the engine and over toward the driver side of the engine compartment. it tees off and one end goes to a little resevoir on the engine hood. with the engine running, check to see if you have vacuum to this hose. also with thye engine running press the 4x4 switch and make sure that the actuator os working. the vacuum should **** the diaphram in and hold it in. If there is vacuum to the diaphram when 4x4 is engaged but the diaphram doesn't hold, you will need a new actuator. Hope this helps you.

Dec 29, 2008 | 1998 GMC Jimmy

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