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V6-4.3L

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Won't start
The problem you are experiencing is commonly caused by an electrical relay fault; perhaps the ignition relay or starter relay. It's also very possible that you have a ground wire fault, or that the battery cables are in need of...
Question
Clutch problem
Hi there. To be quite honest, it's possible that the slave cylinder may be faulty; at the same time one of the components within the clutch engagement system may have been improperly installed or not tightened correctly. Without being there...
Question
Coolant coming from spark plug hole
If coolant is getting into every plug hole, the intake manifold may have a crack, or cracks allowing that to happen. If the manifold was not checked for cracks when the intake gasket was replaced, maybe it should be taken...
Question
Vehicle having trouble starting and dies at about 2000 rpm
Frequently this problem is caused by a dirty or damaged mass air flow sensor, a vacuum leak or clogged or dirty fuel injectors / throttle body. If you'd like to know for certain what is the precise cause of your...
Question
Welding the harmonic balancer to crank shaft? 1991 Chevrolet S10
Hello - No, welding the harmonic balancer to the crankshaft is not a good idea for at least 2 reasons. Welding the balancer hub to the crankshaft will damage or reverse the benefits of heat-treatment to the crankshaft itself -...
Question
There is a part on the throttle body that broke, where and how would I go about finding another?
if you are referring to the plastic case that contains the "throttle position sensor" (TPS), the TPS is readily available in the new aftermarket or even as a new OEM (dealer) part. The throttle body itself, and all associated parts...
Question
Mis fire cylinder 1
Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft...
Question
Boots on spark plug wires keep melting 1995 Chevrolet S10
Hi there - this is a problem with this engine, and the stock exhaust manifolds come with heat shields to help prevent the burned plug wire problem. Perhaps your heat shields have been removed? Or, if you're running headers, using...
Question
Low fuel and coolant on dash when full
Hi There, This may be related to a short, a faulty gauge cluster or a faulty instrument cluster voltage regulator. The instrument voltage regulator regulates the voltage supplied to the various gauges in your vehicle’s dash. When this is not...
Question
Headlights
Hi there. It most definitely could be that your headlights and dome light issue is related to the switch being faulty. It could also be a fuse or electrical relay that is damaged. It might be a good idea to...
Question
Have a couple of solenoid codes and a PO1870 code. is it worth fixing?
Hello, Code P1870 relates to the transmission slipping as you describe. This code can be set off for a few reasons such as towing a trailer as this puts additional stress on the lockup function of the transmission. This may...
Question
Whining engine, goes with engine, in neutral or on the road 1998 GMC Safari
Hello - the whining noise you describe, which is related to engine speed, could be a worn alternator bearing, worn power steering pump (check your fluid level) or possibly the engine fan clutch. Any of these two can make an...
Question
Melting spark plug wire boots
If you have had to replace spark plug wires due to melting them then you need to use a stethoscope to check around the burned plug wires to see if there is exhaust leaks from the manifold gaskets and replace...
Question
Car won't start right
Hi there. To be honest, the only help we could offer is to complete a car is hard to start inspection at your location. There could be multiple issues going on with your Blazer, so it's best to have a...
Question
What can cause the RPMs to go super high while driving at one constant speed?
Hi There, It sounds like you are describing the symptoms of a failing throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the...
Question
Check engine light
Hello, This kind of condition could be related to other things such as faulty fuel injectors, a faulty or dirty mass air flow sensor, or potentially a fuel pressure problem related to the fuel pump or fuel pressure regulator. The...
Question
Loud sound when eccelaratjng.
Hello Hazel, thank you for writing in. When the noise is associated with acceleration, then the issue is likely exhaust, transmission, or engine related. There is also the option that the RPMs are reaching higher levels before the vehicle shifts....
Question
hard pedal, no brake action or fluid with engine on or off.
If the brake system was working before and now the brake pedal is hard and the front calipers are not moving, then the brake booster has failed (which is the hissing sound that you are hearing) and there seems to...
Question
I can't get the ring off the fuel tank to take out the fuel pump - 1992 Chevrolet C1500
Hi there - if you don't have the official GM tool, using a screwdriver and small hammer, and alternately whacking each side to unscrew the large lock ring works with patience and liquid penetrant. For professional assistance, I recommend fuel...
Question
Transmission not shifting
Hi There, I would suggest having a your transmission fluid changed to start with as low or dirty transmission fluid is often times the problem when the vehicle struggles to move in a particular gear. Other things may include a...

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