2002 GMC Savana - Answered Questions & Fixed issues

1. Look if the PRNDL light instrument panel. Every light should be on if one missing you have a problem. 2. Look for any PCM (Powertrain Control Module) faulty code with a scanner. 3. PRNDL switch must be adjusted at the right place. When you bought the switch it must have a small key attach to the switch. That's the adjusting tool for adjustment. Be very careful how to do it (switch adjustment procedure). When the PCM senses a transmission fault it will code and take action on that code. ( Like depends what is the fault) 1. No TCC apply and no fourth gear engage and many more actions. Faulty code appearing isn't time or synchronize with your problem. See this link: How to Install Replace Neutral Safety Switch Automatic Transmission 2000... Hope it helps.

Have fuel pressure checked and scan the system for fault codes.

They are famous for fuel pumps going bad. Spray starting fluid in the throttle body, if it starts for a second, its a bad fuel pump.

Security wise? turn the ignition on for ten minutes, off for thirty seconds. Try t start. this a reset. A relearn is three times this. Start after the third time. Still no stat. Have the security codes read. Bad key,chip,wires, or BCM.

do you have auto on off light ? if so that could be a lighting control module LCM , next check headlight relay ,also check dash switch and wiring.

check all the bulbs are working.only change bulbs in pairs.from the same company.

timing is controlled by computer

Slide pins probably getting stucked. You can remove the caliper and grease them to see if it helps.

open the back door. there are two screws that hold it in (ether a philips or a torx) unscrew and pull straight out. it is cliped in on the other side so you need to pull hard.

There is plastic covers inside. They are either held on with screws or clips. If they are held on with clips you might need a special tool which you can get off any tool truck - Snap On, Mac, Matco, Cornwell, The Tool Box. You will find the harness behind this plastic trim. Good luck.

Hi Jim, If the vehicle is fitted with climate control it will have electronic management. However it can be wired by someone knowing electrical circuitry to by pass the control. It will save you some cash but will need manual control. Make sure whoever does the job knows what he or she is doing. Have a happy new year. Regards John

should be on the passenger side on one of the heater hoses. make sure its open, also make sure both hoses are warm,

Every Library has a Vehicle Repair Guide Available with all the spec included. Online is usually a subscription. Your local autoparts store has the auto guide, the specs are in the back of the book

Ignition Wires on wrongWorn out Cats --can't test?140,000 miles & 11 years--replace themCheck Fuel pressureFront O2 Sensors--not the issue, but getchanged at 100,000 miles

Could be sensor and in alot af cases a transmission problem itself...hope this helps and good luck.

you need to look up the radio instructions in your owners manual about ththeftlock. if you dont have an owners manuels maybe you can find it online.

I recommend getting another key cut. That feature is not adjustable by the owner but may be adjustable by the dealer.

90 inch pounds or 8 foot pounds. Good luck. Scott

You have the 6.5L Turbo correct?

I would start with the PMD. It was a problem for several years. I have to replace the one in my truck about every 3 years or 90K.

I had a similar problem with my Grand Prix. It is most likely from your air to fuel mixture. Either your intake has a leak or you need to change the mass airflow sensor.