Top 20 2005 Chevrolet Express Questions & Answers

GM Fuel Pump Relay Testing Do you know how to test electrical circuits .

get a good fuel addative to clean the fuel system , sensors etc as could just be a built up of carbon,varnish etc , take for a good long drive and get engine very hot for a good 30 minutes

check transmission fluid level also look and smell fluid if smell burnt and or color is brownish {color is a red } than change fluid and filter it may help but if metal present or heavy filings on pan magnet [and the problem persists } you have a problem that may need a shop to repair or replacement unit

Two different types of clamps are used on GM radiator hoses. Spring Tension Type Screw Type You may have to access the lower rad hose from underneath the vehicle if you cannot reach the lower hose from the engine compartment.

it means that there is a problem concerning the engine or transmission and the ECM has placed the system in limp mode which is designed to allow you to get the vehicle out of harms way only check water in the radiator, check for overheating, sump and transmission oil levels, drive belts, abs and tract control system have the fault codes read to determine what cause the limp mode setting.

$50 at Crutchfield if your van doesn't have OnStar - probably more if you do: Crutchfield You can look thru Metra's site: Metra Electronics Car Audio

There is a spring loaded tension pully that needs to be depressed. I believe is has a 1/2 inch square socket female end on the front of tension pully that you can use a 18" or 20" breaker-bar to get leverage to reduce the tension. Reduce the tension remove belt and just reverse the process to install new belt.

Check battery connections carefully. Check neutral safety switch if automatic trans.

There should be two bolts at the bottom and two at the top of the shroud to remove it. There should also be a diagram of the serpentine belt located somewhere under the hood or by the hood latch.

check relays

bad relay on rear by the motor

Here ya go

Duplicate question, already answered.

You can use obd2 code scanner to check the engine system.

Only on a ford products & if you were in a crash,you wouldn't be fixing anything,most likely scapping itWhy would you crank a vehicle, until you ran the battery down?Now that may never recharge or last a week- if it is old

You didn't say what size engine, but I think all of the 2005 models have direct ignition, which means each cylinder has a coil on top of the spark plug.Are you talking about that ?

DTC P0753 1-2 Shift Solenoid Control Circuit - this code does not mean the shift solenoid is bad . It states control circuit , wiring , the driver inside the PCM , power to the circuit . Install a scan tool. Turn ON the ignition, with the engine OFF. Important: Before clearing the DTC, use the scan tool in order to record the Freeze Frame and Failure Records. Using the Clear Info function erases the Freeze Frame and Failure Records from the PCM. Record the DTC Freeze Frame and Failure Records. Clear the DTC. Is DTC P0758 or P2761 also set? YES - Go to Step 3 NO - Go to Step 4 Inspect the IGN 0 fuse for an open. Refer to Circuit Protection - Fuses in Wiring Systems. Is the fuse open? -- YES - Go to Step 12 NO - Go to Step 5 4 Use the scan tool in order to command the 1-2 SS valve ON and OFF three times while listening to the bottom of the transmission pan, a stethoscope may be necessary. Does the solenoid click when commanded? -- Go to Intermittent Conditions in Engine Controls - 4.8L, 5.3L, and 6.0L Go to Step 5 5 Turn OFF the ignition. Disconnect the AT inline 20-way connector. Additional DTCs may set. Install the J 44152 jumper harness (20 pins) on the engine side of the AT inline 20-way connector. Turn ON the ignition, with the engine OFF. Using the J 35616 GM terminal test kit, connect a test lamp from terminal E of the J 44152 to ground. Refer to Automatic Transmission Inline 20-Way Connector End View . Does the test lamp illuminate? -- YES - Go to Step 6 NO - Go to Step 15 This is a long diagnostic flow chart an I would think you do not have a scan tool . Your best bet is to take to a transmission shop .

Try resetting the computer. Take negative battery cable off for a few minutes then replace it. Hope that fixes your problem.

Free manual download here: http://www.extendedgmwarranty.com/owners-manual/chevrolet/2005-Chevrolet-Express.pdf
see page 3-40 to set the clock, and thanks for using FixYa.

i would give the ignition switch a try.. some times it will affect it.