Nov 242017

2010 Pontiac G6

I put a new (used) motor in my 2010 Pontiac G6. And when you turn the car on the backup lights come on and stay on.All the lights on the dash work. But when you go to start it nothing happens. It won’t click it, won’t do anything. I figured it’s something to do with the security system but the security light goes off as soon as you turn the key on so I’m stuck.

We have developed a Flow Chart for diagnosing no start situations. Take a look. I will ad a wiring diagram of the starting system to help assist with this issue. Check your battery connections, then your starter fuse #26.

Starting Circuit Wiring Diagram – 2010 Pontiac G6

(best viewed in Google Chrome or Firefox)

Nov 242017

1994 Honda Passport

How do you remove the lower part of the timing belt cover the water pump is behind? It is a 1994 Honda Passport with a 24v V6.

Timing Belt Cover Replacement

3.2L (VIN V) Engine
1.Disconnect the negative battery cable.
2.Drain the engine coolant.
3.Remove the air cleaner assembly.
4.Remove the upper fan shroud and remove the cooling fan.
5.Remove the drive belts.
6.Remove the fan pulley assembly.
7.Remove the crankshaft pulley bolt and crankshaft pulley.
8.Remove the two oil cooler hose bracket bolts on the timing cover. Remove the oil cooler hose.
9.Remove the timing belt cover.
To install:

10.Install the timing belt cover and tighten bolts to 12 ft. lbs. (17 Nm).
11.Install the oil cooler hose and tighten brackets to 16 ft. lbs. (22 Nm).
12.Install the crankshaft pulley. Use tool No. J-8614-01, or an equivalent pulley holder and tighten the bolts to 123 ft. lbs. (167 Nm).
13.Install the fan pulley assembly and tighten the bolts to 16 ft. lbs. (22 Nm).
14.Install the drive belts.
15.Install cooling fan assembly.
16.Install upper fan shroud to the radiator.
17.Install air cleaner assembly.
18.Refill the engine with fresh coolant. Bleed the cooling system.
19.Connect the negative battery cable.

Nov 232017

1998 Toyota Corona

Jerks backward uncontrollably

My 1998 Corona Exiv rolls for a bit when in reverse, then stops suddenly even though the accelerator is still depressed. It eventually jerks backward uncontrollably for a few meters. Then responds to the brake pedal being depressed. This problem doesn’t occur when the car is in Drive.

This sounds to me like a transmission related issue. The first thing to check would be the transmission fluid level.

If the fluid level is low, top it off and retest several times. While checking the fluid if the color appears dark or burnt looking it may be too late. Burnt color fluid is an indication of worn internal material.

Nov 212017

Chevy Silverado

My battery went dead. I replaced it. Now I have no power windows, locks, lights, etc. and it wont start.

No power windows

My guess would be you didn’t get it connected right, have corrosion at the battery/cables or you managed to blow a fuse or two. The starter has a relay a two fuses to check. Fuse 60 and 64 should be checked. The windows do not have a fuse, this is what leads me to think it is a bad connection at the battery. Not to mention it was the last thing that was worked on. Double check your work.

Nov 192017

2005 Chevy Trailblazer

Can I have broken trans axle removed and convert to 2 wheel drive? It is a 2005 Chevy Trailblazer 4×4 auto. Thank You

Anything is possible with enough time and money but I wouldn’t recommend it. Oil would leak out of the front differential. This would also allow water to get into the differential.

Front Drive Axle Description and Operation

Selectable Four Wheel Drive (S4WD) Front Axle Description and Operation

The Selectable Four Wheel Drive (S4WD) Front Axle consist of the following components:

  • Differential Carrier Housing
  • Differential Case Assembly
  • Inner Axle Shaft
  • Intermediate Shaft Bearing Assembly (located on the right side of the oil pan)
  • Electric Motor Actuator

The front axle on Selectable Four Wheel Drive (S4WD) model vehicles uses a disconnect feature mounted on the right side of the oil pan in order to engage and disengage the front axle. When the driver engages the 4WD system, the Transfer Case Control Module sends a signal to the electric motor actuator to energize and extend the plunger inside. The extended plunger moves the clutch fork and clutch fork sleeve across from the clutch fork outer gear that is splined to the right side wheel drive shaft to the clutch fork inner gear that is splined to the inner axle shaft. The locking of the two gears allows the axle to operate in the same manner as a semi-floating rear axle.

A propeller shaft connects the transfer case to the front axle. The differential carrier assembly uses a conventional ring and pinion gear set to transmit the driving force of the engine to the wheels. The open differential allows the wheels to turn at different rates of speed while the axle continues to transmit the driving force. This prevents tire scuffing when going around corners and premature wear on internal axle parts. The ring and pinion set and the differential are contained within the carrier. The axle identification number is located on top of the differential carrier assembly or on a label on the bottom of the right half of differential carrier assembly. The wheel drive shafts are completely flexible assemblies consisting of inner and outer constant velocity CV joints protected by thermoplastic boots and connected by a wheel drive shaft.

Automatic Four Wheel Drive (A4WD) Front Axle Description and Operation

The Automatic Four Wheel Drive (A4WD) Front Axle consist of the following components:

  • Differential Carrier Housing
  • Differential Case Assembly
  • Inner Axle Shaft
  • Intermediate Shaft bearing Assembly (located on the right side of the oil pan)

The front axle on Automatic Four Wheel Drive (A4WD) model vehicles do not have a disconnect feature in order to engage and disengage the front axle. The Automatic Four Wheel Drive system uses the same differential carrier assembly and intermediate shaft bearing assembly, but the clutch fork, the clutch fork sleeve and the inner/outer gears have been replaced with a single splined sleeve that connects the inner axle shaft directly to the right side wheel drive shaft. This connection allows the right side wheel drive shaft and the intermediate axle shaft to be directly connected to the differential case assembly. It also results in having the wheel drive shafts, the intermediate axle shaft and the propeller shaft to spin continuously. When the transfer case is active, the clutch assembly within the transfer case controls the amount of torque applied to the front axle. The remaining components are the same as the selectable four wheel drive axle.

Nov 192017

1999 Ford Escort

Loaned daughter my extra car

Loaned daughter my extra car and while driving on freeway it started acting up. Loss of power, roughness and when she got home car stopped after making loud clunking noise. I pulled out all four spark plugs and the #4 plug was badly damaged. It also appears that the #4 piston is not moving up and down when crankshaft is turned by hand. I can also see some debris is the cylinder. I checked the oil and found that the level is about one and a half times over the full mark, I am guessing about 10 to 12 quarts of oil is present, why I don’t know. Can this amount of overfill cause engine damage?

The extra oil wouldn’t be the cause of the engine damage you described. I would look to see if the coolant or transmission fluid is low. One of the two may have gotten into the oil. Otherwise the oil may have been added after the engine started to make noise as an attempt at fixing it. Either way the engine is toast and will need to be replaced.