Need Help?

1991 Chevrolet G20 Vans Base Cargo Van

1991 Chevrolet G20 Vans
Do you own this car?
Estimated Mileage
Enter current mileage for most
accurate info about this vehicle

Track Your Service Records
Get Recall Alerts
Get Updated Value Estimates on Your Car.

back to question list

Ask the Community

Ask Our Auto Mechanics

November 2, 2012, 4:59 pm

Robin L

Question: Have a dead spot just above idle (like for backing up or in slow traffic even @ speed j

I,ve replaced: plugs wires cap rotor coil , IAC & Removed throttle body & cleaned , new gasket , vacuum hoses , fuel filter. Fuel Pressure is 14. NOW WHAT. IDLES GOOD , starts , runs good. Chked for vac leaks multiple time. It been doing it for bout 2500 mi mostly highway. Ran LUCAS Fuel treatment thru it. ?????????? HELP

November 12, 2012, 12:44 pm

Elizabeth K

I would look for a stuck open EGR valve, or get a scan tool with an o-scope on it to check for a flat spot on the TPS. Either would cause what you're describing.

1/1 users found this helpful.

November 13, 2012, 8:57 am

Robin L

Just replaced TPS , As suggested by local mec , ran it aliitle bit still doing some, did unhook batt about 5 min to reset Left batt disconnected over nite. Going to test drive if not bettr will EGR VALVE Stuck hurt gas miligage or make it eventfully quit running. Need to drive 400mi outof $$ to buy EGR.

0/0 users found this helpful.

Ask our panel of certified auto mechanics a question. We pay for their advice so you don't have to

My Auto Score

See the free AutoCheck score

Meet The Experts
Kim Perrin
Kim Perrin is our resident mechanic here at DriverSide. Kim worked as…
Tyler Orr
Tyler Orr is an expert in German and Japanese cars and has been a mechanic …
Elizabeth Kriesten
Elizabeth Kriesten worked as an automotive technician for several years at Dodge…
Tips on Servicing

Car Brakes: How Do You Know When to Change Them?

By Zach Bowman For those who suffer a daily commute through heavy traffic, your vehicle's braking system can bring thousands of pounds of metal, plastic and empty Starbucks cups to a stop hundreds of times before you get to work. It goes without saying that these pieces wear out, but they do so slowly, meaning you may not notice they need attention until ...

Read more…