20 Most Recent 1998 Chevrolet Astro - Page 5 Questions & Answers

hmm engine mount had the same problem on my dads astro van

sounds to be it may be the block plug or a cracked block. how old is the engine itself?

As I said a few minutes ago ... your alternator is driven by a belt. Open the hood ... find the belt ... you will find the alternator ... and the power steering pump and the A/C compressor and the water pump and the air pump ... But you MUST open the hood first.

Most auto parts stores sell a bypass pulley kit that allows you to swap out the compressor, while still using your existing belt. shop around because auto parts stores vary on price. good luck!

I agree, replace the Coolant temp sensor, it will have 2 wires going to it, Not 1. Usually located just behind the breather near the thermostat outlet.

This sensor controlles your timing and fuel to air ratio.

If you are only at 184,000 miles, it all depends on how much and how you drive this van. If you keep up on your routine maintance, drive it respectively, you should get well over 300,000 miles total from this engine.
Each person drives differently, so if you are the only driver and it's only driven to and from work + minor local driving (shopping etc.) this engine should last you as long as you own the vehicle. For a 98, 184,000 isn't bad - have seen less because owners are that particular about how often and how far they drive the vehicle, some of which have a secondary that they use for their more frequent traveling. It all depends on what you use this vehicle for.
I hope this information is helpful.
carsandcomps

Are you check voltage in the bulbs connector? If also you was check the fuse and this is OK, them I suggest check wiring diagram (click image for zoom)...

ANTI-LOCK BRAKE SYSTEMS...

Fig. EBCM Ground Supply and Controls(c) (1998)

Fig. EBCM Power Supply and Communication(c) (1998)

HYDRAULIC BRAKE...

Fig. Brake Warning System Schematics (1998)

BACK-UP LIGHT

Fig. Backup Lights Schematics (1998)

Keep us updated.

1998 chevy astro 4.3 v6 torque specs include :
* foot pounds *
balance shaft (if equiped) gear bolt = step 1 = 15 ft.lbs. step2 = additional 35 degrees.
camshaft sprocket bolt = 18 ft. lbs.
connecting rod cap = step 1 = 20 ft. lbs. step 2 = additional 70 degrees.
crankshaft damper bolt = 74 ft. lbs.
crankshaft oil deflectorbolt/nut = 27 ft.lbs.
cylinder head bolts = step 1 = 15 ft. lbs. step 2 = additional 73 degrees. (tighten in sequence)



exhaust manifold bolts = step 1 = 11 ft. lbs. step 2 = 22 ft. lbs.
flywheel bolt = 74 ft. lbs.
main bearing cap bolts = step 1 = 15 ft. lbs. step 2 = additional 73 degrees.
oil filter adapter bolt = 15 ft. lbs.
oil pan bolt/nut = 18 ft. lbs.
oil pump bolt = 66 ft. lbs.
rocker arm with press in studs = 18 ft. lbs.
rocker arm with screw in studs = 19 ft. lbs.
valve lifter retainer bolt = 12 ft. lbs.
water pump bolt = 33 ft. lbs.
* inch pounds *
balance shaft retaining plate bolt = 106 in. lbs.
camshaft retainer plate bolt = 106 in. lbs.
front cover bolt = 106 in. lbs.
intake manifold upper = step 1 = 44 in. lbs. step 2 = 88 in. lbs.
intake manifold lower = step 1 = 27 in. lbs. step 2 = 106 in. lbs. step 3 = 133 in. lbs. ** (tighten bolts in sequence)



thanks for your vote !

I have the same problem few days ago, and still didn't find any solution. Can any one please help?????

Hi jorge1982var, the EGR location is just below throttle opening which is connected to the air filter box tube/duct. I hope this solves your problem.It should be something like this: