20 Most Recent 1997 GMC Suburban - Page 9 Questions & Answers

1999 2006 CHEVROLET SILVERADO GMC WORKSHOP SERVICE REPAI to solve your problem please click the link

P0400 p0401 p0402 or 32

Verify that its the proper lamp #. I have seen lamps that look the same but are not. Also the socket might be dirty. remove the bulb and spritz some wd40 or other lube in the hole and try again.

4quarts if you replace just the oil, a little less than 5 quarts if you replace the oil and filter.

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you might not have a problem . TCC solenoid.torque converter clutch.it is Inside the torque converter there is a clutch to stop the slip about 500rpm . you can check it by like 90kmh steady then with other foot just touch the brake pedal no braking just a little bit you will feel release and push again this is the tcc applied and it,s normal behavior

Standard plug gap is .035 inch.

the gap is .045" for these.

New starter

What do you want to know? Have to have some testing & ask what to do next Fuel Pressure - at motor Spark Injector Pulse Compression Ignition Switch What's Missing?

Could be an axel or gear box problem. I would have a technican look at it before it really goes bad.

You obviously have to replace a worn out & melted or broken cat, before you can diagnose anything If the cat is bad you got no fuel control,so the cat goes, as well as the oxygen sensor Odds are the timing chain gears are worn & it jumped time You may have vacuum leaks 1990 doesn't have a carb it has a throttle body ! So you check test the tps sensor & it's adjustment,if any You test the cts,ats,& map sensors Air --In---Air--Out---not with a blocked cat,thus most of your problem,maybe a clogged gas filter as well

Fully charge the battery. Have a load test done on the battery because if it has a failing cell /flat there will not be enough current to run the starter and the ignition system at the same time.

If it is a fuel line you would smell and see gas drip where you park most likely, unless it is up over frame and drying prior to hitting the ground which is possible. Smell gas while parked? Get up under it and look for wet spots on fuel line. Are you getting fuel through line? Pull from under hood and check pressure.

Do you know if the injectors are opening ? And do you have normal fuel pressure ? Will it start using starting fluid ?

Check the fuses. If all ok then loose/broken/shorted/corroded wires.

Thinking fuel pressure regulator,it has a vacuum line connected to it,if the regulator diaphram ruptures it vacuum pulls raw fuel into the line.