1998 GMC Yukon Logo
Anonymous Posted on Sep 10, 2009

Have a 98 yukon hard starting

Have a 98 yukon and starting it has been getting more and more difficult.. Seemed like when I cycled the ignition several times it would start.. But now I just hear the pump whining for several seconds on both sides of turning the ignition.. Finally won't start at all now.. I poured gas down the carb and it fires right up.. runs fine once I get it started.. Feels like the bleed off drains all the fuel out of the line.. Is that a regulator issue? Thanks in advance everyone..

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THIS IS A EVER SO COMMON PROBLEM ON THESE VEHICLES. THE FUEL PUMP HAS A BUILT IN CHECK VALVE WHICH IS SUPPOSED TO PREVENT THE FUEL FROM RETURNING TO TANK AFTER SITTING. WHEN THE FUEL RETURNS TO TANKYOU WILL EXPERIENCE AN EXTENDED CRANK TIME. THE PUMP COMES AS A COMPLETE UNIT ON THIS MODEL AND IS FAIRLY EXPENSIVE(250.00 OR SO) HOPE THIS HELPS AND DONT FORGET TO REPLACE INLINE FUEL FILTER AS WELL!!

Testimonial: "thank you D... so once it's running the pump works fine.. you think just the check valve therefore needing a new pump altogether..?"

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  • Posted on Sep 10, 2009
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FUEL PUMP HAS A BAD CHECK VALVE.FUEL WILL DRAIN BACK IN TANK .SOUND LIKE FUEL PUMP PROBLEMS.

Testimonial: "thank you h.. hope thats it. maybe I'll replace the pump and see if that fixes it.."

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Change the gas filter

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2000 contour

for 98 contour issue. TSB 98-21-14 not covered by warranty

This TSB article is being republished in its entirety to include the 1999 Cougar . ISSUE: The ignition key may be difficult to insert or remove and/or key chimes may sound with the ignition key removed and driver's door open on some vehicles. This may be caused by internal design characteristics in the ignition lock cylinder increasing insertion/removal efforts which may allow the lock cylinder to stick.
ACTION: Install a revised ignition lock cylinder. The revised ignition lock cylinder should reduce the possibility of high insertion/removal efforts and ensure proper chime function. Refer to the following Service Procedure for details.
SERVICE PROCEDURE
  1. Verify customer concern.
  2. Observe the ignition lock cylinder as the key is removed. If the lock cylinder snaps outward to the non-depressed position and the chimes stop sounding, continue to Step 3. If it does not snap outward, replace the ignition lock cylinder with the appropriate cylinder by referring to the Parts Block in this article.
  3. Insert and remove the ignition key from the lock cylinder. If binding or high efforts are encountered, replace the ignition lock cylinder.
  4. From the Parts Block, select a lock cylinder with a part number suffix identical to the center character of the key code of the vehicle. The suffix must match the center key code character to maintain a single key system.
  5. Install the replacement lock cylinder, by referring to the 1998 Contour/Mystique Workshop Manual, Section 211-05 or the 1999 Cougar Workshop Manual, Section 211-04. NOTE: KEYS INCLUDED WITH NEW IGNITION LOCK CYLINDERS ARE CUT FOR THE IGNITION ONLY. IN ORDER FOR THE KEYS TO FUNCTION IN THE DOOR LOCKS, THE KEYS MUST BE CUT TO THE DOOR CODE OF THE ORIGINAL LOCKSET. THE KEY CODE WILL CHANGE UPON INSTALLATION OF THE REPLACEMENT LOCK CYLINDER (FIGURE 1).

    tw2114~us~en~file=tb5525a.gif~gen~ref.gif
    Figure 1 - Article 98-21-14

    NOTE: ADVISE THE CUSTOMER TO DISCARD ALL KEYS THAT WERE CUT TO THE ORIGINAL IGNITION LOCK CYLINDER.
  6. Record the new key code on the repair order and provide to the customer. Advise the customer to record the new key code in a permanent location and to discard all references to the original key code. NOTE: REPLACEMENT IGNITION LOCK CYLINDERS ARE SHIPPED WITH NON-PASSIVE ANTI-THEFT SYSTEM (PATS) KEYS. IF THE VEHICLE IS EQUIPPED WITH PATS, OBTAIN TWO (2) ROTUNDA KEY BLANKS (OR OTHER FORD AUTHORIZED BLANKS, SUCH AS: ILCO, STRATTEC, CURTIS, HUF, OR VALEO) AND CUT TO THE REVISED KEY CODE. USE OF OTHER UNAUTHORIZED KEYS MAY CAUSE ERRATIC OPERATION OF THE PATS SYSTEM.
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  • All 1999 Cougars
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(2) For Contours/Mystiques with Stand Alone PATS and built before:
  • 2/2/98 Kansas City
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Using the New Generation Star (NGS) Tester equipped with Service card (green) level 1.0 or higher:
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    • Logo on key is Ford for Contour models
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PART NUMBER PART NAME F5RZ-11582-A Ignition Lock Cylinder (Contour) F5RZ-11582-B Ignition Lock Cylinder (Contour) F5RZ-11582-C Ignition Lock Cylinder (Contour) F5RZ-11582-D Ignition Lock Cylinder (Contour) F5RZ-11582-E Ignition Lock Cylinder (Contour) F5RY-11582-A Ignition Lock Cylinder (Mystique, Cougar) F5RY-11582-B Ignition Lock Cylinder (Mystique, Cougar) F5RY-11582-C Ignition Lock Cylinder (Mystique, Cougar) F5RY-11582-D Ignition Lock Cylinder (Mystique, Cougar) F5RY-11582-E Ignition Lock Cylinder (Mystique, Cougar)
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