Question about Cars & Trucks

1 Answer

Blows heater fuse when trying to engaging 4 wheel high. Plus no drive lights lighting up on shifted panel on floor when in 2 or 4 wheel drive

Posted by on

  • Randy Franks
    Randy Franks Nov 26, 2013

    1988 GMC 2500 4x4 Truck

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Sergeant:

    An expert that hasĀ over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Cars & Trucks Expert
  • 293 Answers

Check connections and the switch on the 4X4, it obviously is powered by the heater fuse and nothing will work if the fuses are blowing cutting power to the whole system

Posted on Nov 26, 2013

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 10 Answers

SOURCE: 4 WHEEL DRIVE DONT WORK

first off your heater dial swithc is buggered. and as for the four wheel drive is it all electric diff locks or do you have to get out and lock hubs in etc?

Posted on Dec 23, 2008

  • 2 Answers

SOURCE: 4 wheel drive won't work

There is a vacum powered actuator on the front differential housing on the passenger side. It gets it's vacum from two valves mounted on the firewall just behind the battery(to left). The white line feeds manifold vacum to the valves. Check for vacum at white line with engine running. If no vacum there is a break in line from manifold. If vacum check the pink and blue lines by applying vacum to each one. The vacum should hold. If not check lines from valves to vacum actuator. Most likely it will be the actuator. If both lines hold vacum check valves. Remove electrical connectors from both valves. Connect a wire from one of the terminals of the valve to ground. Touch a wire from the battery + to the other terminal of the valve. Listen for a clicking sound. If no sound valve is bad. Replace valves(s). If this doesn't lead you to the trouble it's probably a mechanical problem inside the differential. However most likely there would other noises.

Posted on Jan 08, 2009

Monster80
  • 460 Answers

SOURCE: Lights flashing on 4 wheel drive panel

the front actuator is not working..If you open the hood and under the battery is the plunger that pulls the cable for the 4x4..If theres a vacuum leak it will not in gage.It could also be the sensor in the transfer case..What you could do is you may have to pull the tray out that holds the battery in and see if the actuator/plunger has a hole in it..It looks like an old chevys cruise control but it is directly under the battery...You can pull the plunger in and try and move the car to see if it locks in to rule out any bad parts in the front axle..If that works the problems a little easier to figure out..Either the plunger has a hole in it and cant hold vacuum or theres a hole in the vacuum lines to it..The vacuum lines also run all the way back to the transfer case also so they could have a hole in them also.If those are all good then the sensor in the transfercase on the top of it and its either a three wire or four wire is bad..Hope this helps you have a great day

Posted on Dec 08, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Got a 2004 Ford F-150 transfer case i gauges front drive shaft turns but front axle does not lock into 4 wheel drive what could be causing issue its a shift on the floor lights for low come on but not high...


Check your hubs lift front end if wheel does not turn when locked in 4x4 then hubs are not engaging turn wheel by hand or a pipe wrench on drive shaft do not try power unless all wheels are lifted

Jan 02, 2015 | 2004 Ford F150

1 Answer

04 silverado 4x4 won,t engage


when the actuator goes, usually the fuse goes as well, check your fuses.

Dec 17, 2013 | Cars & Trucks

1 Answer

89 bronco ii won't go into 4x4 or low range


ON LEVEL GROUND
With the transmission selector in "park", start the motor.
With your foot on the brake pedal (steady-constant pressure), move the transmission selector gear to neutral- then turn the 4 X 4 selector knob to 4-wheel drive high. Wait for the 4 X 4 engagement.
Once it is in 4-wheel drive high, with the transmission selector still in neutral, quickly pump the brake peddle twice, keeping you foot on the brake pedal on the second pump, turn the 4 X 4 selector knob from high range to low range. The transfer case should then change from 4-wheel drive high to low.
Electronics being what they are, you sometimes have to repeat the process. You may even have to inch forward or backward.
[I have an '01 Excursion and an '05 F250 with 4 X 4 on the fly...I miss my '97 F250 with the manual 4 X 4 shift on-the-floor!]
Anyway, check the fuse panel for any blown fuses.
Double check to make sure that the problem is not just blown 4 X 4 lights on the instrument cluster. With the nob turned to 4-wheel drive, have a second person- a spotter, check to see if the drive shaft to the transfer case is moving. If it isn't, you have to delve into the troubleshooting process.
Check the solenoids, vacuum hoses, vacuum actuator, and transmission range sensor on the transfer case. .

Nov 27, 2013 | 1989 Ford Bronco II

1 Answer

Under the hood fuse box lay out diagram


same fuse, you need to put truck in nutral and let it roll to engage four low. if this doesn't work your shift motor is tired.

Nov 03, 2013 | 1993 Ford F150 SuperCab

1 Answer

2002 Silverado 1500 push button 4 wheel drive issue Light will light showing it is in 4 wheel drive but it is not. Auto button seems to work though.


2 speed electric shift transfer case problems #1 jack up truck place on 4 jack stands. Start and select 4 high position in drive release brake ad watch front driveshaft does it turn "yes" problem is axle actuator on passenger side of differential not engaging axle shaft. "no" apply brakes bring to a stop engage low range does low range work "yes" internal transfer case problems "no" electric transfer case shifting motor failure.

Oct 26, 2013 | 2002 Chevrolet Silverado 1500

1 Answer

I don't know how to get my 2001 kia sportage into four wheel drive


On small shift behinde gear lever there is 3 settings. H4 = 4 wheel drive high range, L4 = 4 wheel drive low range, h2 = 2 wheel drive high range. as soon as jou engage to 4 wheel drive a green light on the dash board will appear to indicate that the car is in 4 wheel drive. if not check fuse - check air pipes at front wheels. Enjoy Willem Sa

Dec 19, 2009 | 2001 Kia Sportage

1 Answer

4 Wheel drive not functional


There is a TSB on this problem: TSB #03-04-21-001C

Subject:4WD Switch Indicator Lights Flashing, 4WD Inoperative, DTCs C0327, P0500, P0836, P1875 Set (Replace Encoder Motor Sensor, Reprogram TCCM, Inspect Front Drive Axle Engagement Sleeve for Damage/Repair) #03-04-21-001D - (12/04/2003)



Models:2003 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2003 GMC Sierra, Yukon, Yukon XL
with 4WD and Electric Shift or Active Transfer Case (RPO NP1 or NP8)
You can also try removing the TREC fuse (engine fuse box) and reinstall after 30 seconds. Look up the TSB number I gave you and you'll find alot more information.

Dec 16, 2009 | 2003 Chevrolet Tahoe

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

114 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76691 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...