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C1500

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Question
Bad fuel pump or another issue? 1992 GMC C1500
Hello - I agree with you that this is likely a fuel supply issue. There are several possibilities as the source of the problem fuel pump or fuel pump relay (runs, but gets hot and fails), fuel filter clogged, dirty...
Question
Heater blowing cold air
Hello. You are likely looking like an internal leak somewhere in the system. If there are no visible leaks inside of the engine bay or visible leaks on the ground, then the engine is consuming the coolant. Have there been...
Question
BRAKE PROBLEM
Hi there. It sounds like the brake booster could be failing. Many times a leaking master cylinder is the cause. The master cylinder can leak brake fluid into the booster over time without anyone really noticing. The brake fluid is...
Question
Rough idle when in drive..but idle is fine when in nuetral or park
Hi there. Check for vacuum leaks on the engine. A small leak will cause the engine to stumble when the rpm's are low, like in gear on automatic transmissions. Look around the intake manifold for the gaskets being broken. Check...
Question
My truck will crank but won't start.
Hi there: Anytime you complete wholesale changes as you have on your Chevrolet C1500, it's more than likely that you'll experience electrical glitches which will cause the issues you're experiencing. It's possible that a ground wire or other electrical sensor...
Question
Back brake light/ tail lights not working properly
Hello. The brake lights are controlled by stoplight switch, contacted by the pedal. If they are cutting off after coming to a complete stop then that may be a sign that there is an issue with the switch, circuit, or...
Question
no pick up
Hi Chad. Assuming the check engine light is not coming on, leads me to believe the ECM (engine control module)/computer is not recognizing a fault. The overall lack of acceleration and reduced speed, holding a steady accelerator pedal, could be...
Question
Oil in my carberater
Hi there: Typically when oil is splattered over the left side of the engine, it's caused by a engine oil seal (such as the crankshaft, camshaft or timing gear cover) is damaged. When oil leaks, it hits the serpentine or...
Question
Runs but keep cutting off 1995 Chevy C1500
Hello - this is likely an air/fuel supply issue. Check for any problem codes, even if the Check Engine is not illuminated. (Yes, even though your truck is not OBD II compliant, there are built-in diagnostics.) These can be invaluable...
Question
When I unplugged the TPC it runs like a new truck
Hi there. If when you remove the TPS (throttle position sensor) and the engine runs better, then there could be an issue with the MAP (manifold absolute pressure) sensor. Check the MAP sensor and see if the harness is good...
Question
Truck will act like it is not getting enough fuel when cruisng. RPMs drop then comes back up or under load
Hello. I think you have called it, this is almost certainly a fuel supply issue. Installing a fuel pump pressure gauge which can be observed while driving will confirm this. Sources could include a worn out fuel pump, a fuel...
Question
How to install a exhaust system with the springs so hard to push down to get it on. Please help.
If you have a big enough pair of pliers, channel locks or vice grips, you may be able to bring the flanges of both exhaust components close enough to get the bolt through and catch a couple of threads. Many...
Question
Cherry red catalytic converter.
Hi there. Usually, oxygen sensors do not cause this problem, but if the oxygen sensor itself is causing the truck to run lean, then that could cause this issue. If the oxygen sensor is bad, the Check Engine light...
Question
The car has good spark and fuel but won't fire up
Hi there: In most cases, the issue you're describing is typically caused by ignition coil, distributor rotor, or crankshaft position sensor that is faulty, damaged or has an electrical harness that is pinched or damaged. It could also be fuel...
Question
Transmission swap to 400 turbo
Hi there: The vehicle identification codes on a GM product like the Turbo 400 transmission you're looking at indicate three things. The GT indicates the application of the transmission; in this case Chevy Truck. The 69 indicates the manufacturing year;...
Question
I change MAF & 02 sensors n now my truck won't even start
A no start diagnostic would reveal the issue. If you are able to get the engine to run momentarily by introducing "fuel" into the intake, in your case starter fluid, that would point toward the issue being fuel system related....
Question
I have a small oil leak
Hi there. I'll start with, there is no mechanic in a can or bottle. Most additives are a temporary fix at best. Most stop leak additives are designed to swell seals, problem being, at what point does the additive stop...
Question
The vehicle runs like a champ but it shifts hard from 1st to 2nd gear. Any advice to be appreciated
Hi there. The 1 - 2 shift accumulator spring has broken and needs replace in the transmission. To do this, drop the transmission oil pan and oil. On the back right side of the transmission on the inside you will...
Question
Truck wont go in gear 1989 Chevy C1500
Hello - I suspect there is still air in the hydraulic line for the clutch. If you bleed the system depending on gravity to bleed it for you, it just won't bleed properly. Pressure-bleeding it from the bottom-up is sometimes...
Question
Back firing
If you were working around the distributor and loosened and re-tightened it you might have set the timing wrong. Specifically, delayed or retarded timing causes backfiring as the spark occurs too late and so part of the air fuel charge...

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