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V8-7.4L

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Choose a carburetor for 454 Chevy engine
Hi there. For the carburetor swap out, you will need to have a least a CFM of 850 or 950 for a big block GM engine. If you are concerned about fuel consumption, then you could do a CFM of...
Question
My dash electric system is shot. Any Ideas what to fix?
Hi There, It sounds like your instrument cluster needs to be replaced. Like many other elements of your vehicle, the modern instrument cluster is electronic, and requires voltage in order to operate. The instrument cluster consumes less power than batteries...
Question
Engine seems locked
Hi there. Sounds as if the meter in the carburetor has failed and made the float continues attempts to fill up when it is to be shut off. This will cause the engine to statically lock up. If the carburetor...
Question
Trucks pulls to left under braking
If it is in fact the slide pins sticking once again, try a different type of "brake lube" or caliper lube. Sometimes synthetic lubes work better in different climates. I went through a similar situation with my other half's car....
Question
Transmission problems?
If you feel that you are experiencing transmission issues, I would recommend having your truck inspected by a certified professional with experience in transmission diagnosis. If you continue to drive the truck with these issues, they can become worse and...
Question
Motor Oil?
Hi There, Contrary to popular belief, it will not hurt your engine when switching from synthetic to conventional or vice versa. In fact, Synthetic blend oils are actually a mix of conventional oils and synthetic oils. Many synthetic oils are...
Question
Odometer stopped working 1994 Chevrolet K2500
Hello - your truck has a digital instrument cluster. It is possible that either a speed sensor, or something in the clusters electrical components is failing. (These are notorious for failures) There are rebuilders for these clusters who can offer...
Question
Cylinder Head inspection
I would recommend pulling the cylinder heads off to inspect considering 2 of the push rods broke. This may have caused material from the broken rods to be scattered throughout the valve train or potentially other places in the motor....
Question
No spark to coil and module
There are a number of issues that may cause an ignition system to not produce spark. A bad crankshaft position (CKP) sensor (on engines that do not have a distributor), or broken, loose or corroded wires from the sensor...
Question
1998 chevy suburban 2500 4x4 7.4 / 4l80e limp mode?
If the check engine light did come on and the trans went into limp mode, often there will be a fault code stored to shed some light on the problem. The trans fluid level and condition can be checked and...
Question
Dead Battery again
You may have a failing voltage regulator that could be allowing the alternator to supply too much or too little amperage to the battery resulting in the battery never maintaining a consistent charge as it is designed to. The voltage...
Question
A/C pressure is high on both sides after compressor, condenser, accumulator, orifice change
Hi there. In general, high pressure on both high and low pressure AC sides is typically caused by an obstruction in the evaporator. In some cases, this can be a simple debris that can be cleaned if removed, while in...
Question
Low brake pedal and anti-lock brakes are not kicking in.
The brake pedal is working to stop the vehicle, but there may be air in the controller unit causing the ABS brakes to not function. I recommend bleeding the brake system from the farthest location from the master cylinder to...
Question
Normal operating voltage?
Most vehicles require at least 13 volts to operate properly. Ideal voltage is 13.8 - 14.4 volts. 14.5 volts is completely acceptable and should cause no issues.
Question
shake in the front end
Vibration or shaking at moderate to high vehicle speeds, felt through the car body and/or the steering wheel, is usually due to dynamic imbalance of the wheel/tire assembly and/or various types of tire defects such as belt separations or excessive...
Question
Truck lost all power oil leak from oil pan
The fuel pump may have failed (pump itself or circuit component such as the relay). Check for fuel pressure. Another possibility is an ignition coil(s) failure, failure of the ignition switch, the crankshaft position sensor, camshaft position sensor and other...
Question
Car died instantly while driving, found a plug wire off, won't start now
Depending on which plug wire came off, this may have been the plug that runs from the distributor to the ignition coil. If this is the case, this would have eliminated the distributor's ability to send ignition spark to any...
Question
I have a 454 big block chevy suburban 85 c20 rwd and it seems to stall and misfire not allowing me to accelerate or even stop it f
Hi there. Typically when I see this issue on big block chevy engines, the first thing I do is check the distributor first. Verify the cap is not cracked, rotor is good, and the distributor is solidly mounted to the...
Question
Damage to rear Differential? 1994 Chevrolet K2500
Hello - while you are correct that this is not an ideal scenario, I doubt that packing the bearings with a lithium grease like "Red & Tacky" is a long-term issue. Not sure where R&T gets a bad rap as...
Question
Joshua, I have a 70 chevelle just rebuipt entire drive train, but having problem with clutch linkage working correctly. Are yuou a
Hi Glenn. This type of issue can happen frequently when OEM and aftermarket components are assembled together. The problem is determining whether it's the linkage itself or the inner clutch components that are not correctly adjusted. When I had this...

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