A good customer called and said that on the way to work the security light came on in the dash and when he got to work the engine would no longer crank up. I suggested the normal check the battery cables, try cranking it in neutral instead of park, tilt the steering column up and … Continue reading “1999 Chevrolet Suburban No Crank Condition”
A 2001 Chevrolet 2500HD with a 8.1 liter engine came in with the complaint that the engine would stall. Sometimes it would restart right away and sometimes it would not. I checked codes and found a code P0335 stored for a crank sensor fault. I did a basic inspection for anything obvious and found nothing … Continue reading “P0335, 2001 Chevrolet Silverado 2500HD”
This 2003 Chevrolet Tahoe with a 5.3 liter engine came in with the customer complaint of the reduced power display was on and the vehicle could not be driven more than about 30 mph. Checking codes found a code p1516 stored for Predicted VS. Actual Throttle Position Correlation Error. That is fancy computer talk for … Continue reading “Reduced Power Displayed 2003 Chevrolet Tahoe”
This Suburban came in with the complaint that the turn signal fuse blows. The customer could not relate when the fuse would blow and it would not blow when it came in the shop. I first went to the rear and and inspected the wiring there and found no problems. Next I turned my attention … Continue reading “Turn Signal Fuse Blows In 1997 Chevrolet Suburban”
This 2001 Chevrolet Silverado came in the shop with the complaint of no stoplights. First I confirmed that none of the stoplights were working including the CHMSL (center high mounted stop light). After this I went to the underhood fuse box because the manufacturer has made diagnosing the stoplights very easy at this location. By … Continue reading “2001 Chevrolet Silverado With No Stoplights / Brakelights”
1996 Chevrolet 1500 Truck came in with an intermittent no run condition. When the no run condition would occur the dash warning lights would not come on either. After cycling the ignition switch several times the lights would come on and then the engine would crank and start. I checked basic battery and cables for … Continue reading “1996 Chevrolet 1500 Truck Ignition Switch”
This 2001 Chevrolet Silverado came in with the complaint that the ignition key will not turn most of the time. I removed and inspected the lock cylinder and housing assemblies and found the fault with the tumbler assembly. The following are pictures of dis assembly. Grasp the corner of the dash and pull out. Repeat … Continue reading “2001 Chevrolet Silverado Ignition Lock Cylinder Will Not Turn”
2000 Chevrolet C3500 pickup with intermittent battery drain. Installed amp meter in between battery negative post and negative battery cable. A test light can be substituted if needed but not really recommended. Let vehicle sit for about 45 minutes to ensure all modules had gone to sleep and a .85 amp drain remained. Removed all … Continue reading “2000 Chevrolet C3500 Intermitent Battery Drain”
This is a very common problem on 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 and 2007 Chevrolet Silverado and GMC Sierra trucks. Over a period of time the resistor and usually the connector overheat and blower operation stops in some or all speeds. The blower resistor is located on the passenger side of the … Continue reading “2005 Chevrolet Silverado Blower Inop”
Vehicle came in the shop, with the SES light on and an obvious misfire. Previous shops had replaced plugs and wires, removed cats, replaced both bank 2 oxygen sensors, the ECM and had swapped positions of coils and injectors for cylinder #6. I scanned vehicle and found a misfire present on #6 cylinder on a … Continue reading “2004 Chevrolet Silverado 2500HD , 6.0 Vin U Misfire”